Waec Mathematics Past Questions and Answers

Question 431:

• WAEC 1995

Factorize the expression x(a - c) + y(c - a)

A. (a - c)(y - x)
B. (a - c)(x - y)
C. (a + c)(x - y)
D. (a + c)(x + y)
E. (a - c)(x + y)

Question 432:

• WAEC 1995

If \(y \propto \frac{1}{x^2}\) and x = 3 when y = 4, find y when x = 2.

A. 1
B. 3
C. 9
D. 18
E. 21

Question 433:

• WAEC 1995

Solve the equation 3x\(^2\) + 25x -18 = 0

A. -3,2
B. -2,3
C. -2,9
D. -9,2/3
E. 2/3, 9.

Question 434:

• WAEC 1995

Solve the equation (x +2)(x - 7) = 0

A. X = 1 or 8
B. X = -2 or 7
C. X = -4 or 5
D. X = -3 or 6
E. X= -5 or -2

Question 435:

• WAEC 1995

Solve the following simultaneous equations: x+ y = 3/2; x - y = 5/2 and use your result to find the value of 2y + x

A. -2
B. -1
C. ¹/₂
D. 1
E. 3¹/₂