Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Browse exam papers

Or go directly to:

Class notes Holiday assignments Topical questions Other resources

Factorize a² –b² hence find the exact value of 4897² – 4797²

Answers

Kavungya answered the question on September 17, 2019 at 06:53

Answer Attachments

Next: The set apparatus was assembled by a group of students to investigate some physiological process.

Previous: Photographs below represent specimen taken from three species of plants.

View more Mathematics Questions and Answers | Return to Questions Index

Exams With Marking Schemes

Related Questions

a) Given that y = 2cos (2x – 30)^o is the equation of a curve state the amplitude and period of the curve b)Given that y... (Solved)

a) Given that y = 2cos (2x – 30)^o is the equation of a curve state the amplitude and period of the curve
b)Given that y = -1 1/5 in the above function, find x where

Date posted: September 17, 2019 . Answers (1)
Machine A can do a piece of work n 6 hours while machine B can do the same piece of work in 9 hours. Machine... (Solved)

Machine A can do a piece of work n 6 hours while machine B can do the same piece of work in 9 hours. Machine A was set to do the piece of work but after 3 hours it broke down and machine B did the rest of the work. Find how long would machine B take to do the rest of the work

Date posted: September 17, 2019 . Answers (1)
Make t the subject of the formular (Solved)

Make t the subject of the formular

Date posted: September 17, 2019 . Answers (1)
Use matrix method to solve the following pair of simultaneous equation 3x + 2y = 12 -y + 4x = 5 (Solved)

Use matrix method to solve the following pair of simultaneous equation
3x + 2y = 12
-y + 4x = 5

Date posted: September 17, 2019 . Answers (1)
P varies directly as Q and inversely as the square of R. When Q=5 and R=3, P=20. Find R when P=21.6 and Q=15 (Solved)

P varies directly as Q and inversely as the square of R. When Q=5 and R=3, P=20. Find R when P=21.6 and Q=15

Date posted: September 17, 2019 . Answers (1)
Without using tables and calculators simplify by rationalizing the denominator Leave your expression in surd form (Solved)

Without using tables and calculators simplify by rationalizing the denominator
Leave your expression in surd form

Date posted: September 17, 2019 . Answers (1)
The 1^st 2^nd and 5^th terms of an arithmetic progression series are three consecutive terms of a G.P, find the ratio of the G.P (Solved)

The 1^st 2^nd and 5^th terms of an arithmetic progression series are three consecutive terms of a G.P, find the ratio of the G.P

Date posted: September 17, 2019 . Answers (1)
Solve the compound inequalities and hence list down the integers which satisfy the inequalities (Solved)

Solve the compound inequalities and hence list down the integers which satisfy the inequalities

Date posted: September 17, 2019 . Answers (1)
Expand (1 – 2x)⁵ hence use the expansion up to the forth term to estimate the value of (0.8)⁵ correct to 3 decimal... (Solved)

Expand (1 – 2x)⁵ hence use the expansion up to the forth term to estimate the value of (0.8)⁵ correct to 3 decimal places

Date posted: September 17, 2019 . Answers (1)
Use logarithms tables to evaluate (Solved)

Use logarithms tables to evaluate

Date posted: September 17, 2019 . Answers (1)
A manufacturer discovers that a mixture of juice brand A which costs Kshs. 30 per litre and juice brand B which costs Kshs. 45 per... (Solved)

A manufacturer discovers that a mixture of juice brand A which costs Kshs. 30 per litre and juice brand B which costs Kshs. 45 per litre would cost Kshs. 40 per litre of the same mixture.
a)How much of each would be required to produce one litre of each mixture.
b)If the cost of production of juice brand A is shs. 27 per litre and juice brand B which costs shs. 42 per litre. What price must the manufacturer sell the mixture to make a profit of 20% per litre?
c)If the cost of production decreases by 10% for juice brand B, what price must the manufacturer sell to retain the same profit margin?

Date posted: September 17, 2019 . Answers (1)
The diagram below shows a sketch of the line y = 16 – x² and y = x² – 4x intersecting at point A and... (Solved)

The diagram below shows a sketch of the line y = 16 – x² and y = x² – 4x intersecting at point A and B.

a)Find the coordinates of A and B.
b)Calculate the area bounded by the curve y = 16 – x² the y-axis and the x-axis.
c)Calculate the area of the shaded region that lies below the x – axis.
d)Calculate the area of the region enclosed by the curves y = 16 – x², y = x² – 4x and the y – axis.

Date posted: September 17, 2019 . Answers (1)
Towns P(36⁰N, 49⁰E) and town Q(36⁰N, 131⁰W) are on the earth surface. a)Find the difference between P and Q along the parallel of latitude... (Solved)

Towns P(36⁰N, 49⁰E) and town Q(36⁰N, 131⁰W) are on the earth surface.
a)Find the difference between P and Q along the parallel of latitude given that the radius of the earth is 6370km. (Give your answer to the nearest km.)
b)Another town R, is 840km East of town Q and on the same latitude, find the position of R.
c)If the local time at town Q is 12:30am on Monday, what is the local time of town R?

Date posted: September 17, 2019 . Answers (1)
The table below shows the values of x and y for the curve represented by; (Solved)

The table below shows the values of x and y for the curve represented by;

Date posted: September 17, 2019 . Answers (1)
A mixed school can accommodate a maximum of 440 students. The number of girls must be at least 120 while the number of boys must... (Solved)

A mixed school can accommodate a maximum of 440 students. The number of girls must be at least 120 while the number of boys must exceed 150.
Taking x to represent the number of boys and y the number of girls, write down all the inequalities representing the information above.

Date posted: September 16, 2019 . Answers (1)
The points with coordinates (5,5) and (-3, -1) are the ends of a diameter of a circle centre A. Determine; a)The coordinates of A. b)The equation of... (Solved)

The points with coordinates (5,5) and (-3, -1) are the ends of a diameter of a circle centre A. Determine;
a)The coordinates of A.
b)The equation of a circle, expressing it inform of x² + y² + ax + by + c = 0 where a, b and c are constants

Date posted: September 16, 2019 . Answers (1)
Using trapezoidal rule of 5 strips determine the area under the curve y=3x² – 20 between the line x=1 and x=6. (Solved)

Using trapezoidal rule of 5 strips determine the area under the curve y=3x² – 20 between the line x=1 and x=6.

Date posted: September 16, 2019 . Answers (1)
A farmer bought a tractor at Kshs.210,000 and sold at Kshs.52,500, after using it for five years. Calculate the annual rate of depreciation of the... (Solved)

A farmer bought a tractor at Kshs.210,000 and sold at Kshs.52,500, after using it for five years. Calculate the annual rate of depreciation of the tractor.

Date posted: September 16, 2019 . Answers (1)
Two chords PQ and RS of a circle meet a point X outside the circle. If PX = 6cm, QX = 3.5 cm and XS... (Solved)

Two chords PQ and RS of a circle meet a point X outside the circle. If PX = 6cm, QX = 3.5 cm and
XS = 3 cm, find the length of the chord RS.

Date posted: September 16, 2019 . Answers (1)
Triangle ABC is the image of triangle XYZ when transformed under the matrix . If the area of triangle ABC is 770cm², find the... (Solved)

Triangle ABC is the image of triangle XYZ when transformed under the matrix . If the area of triangle ABC is 770cm², find the area of triangle XYZ.

Date posted: September 16, 2019 . Answers (1)