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Mathematics Past Questions and Answers

Waec Mathematics Questions

Question 1666:

Find the values of y for which the expression \(\frac{y^2 - 9y + 18}{y^2 + 4y - 21}\) is undefined

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A 6, -7
B 3, -6
C 3, -7
D -3, -7

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Question 1667:

Given that 2x + y = 7 and 3x - 2y = 3, by how much is 7x greater than 10?

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A 1
B 3
C 7
D 17

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Question 1668:

Simplify; \(\frac{2}{1 - x} - \frac{1}{x}\)

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A \(\frac{x + 1}{x(1 - x)}\)
B \(\frac{3x - 1}{ x(1 - x)}\)
C \(\frac{3x + 1}{ x(1 - x)}\)
D \(\frac{x + 1}{ x(1 - x)}\)

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Question 1669:

Make s the subject of the relation: P = S + \(\frac{sm^2}{nr}\)

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A S = \(\frac{mrp}{nr + m^2}\)
B S = \(\frac{nr + m^2}{mrp}\)
C S = \(\frac{nrp}{mr + m^2}\)
D S = \(\frac{nrp}{nr + m^2}\)

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Question 1670:

Factorize; (2x + 3y)² - (x - 4y)²

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A (3x - y)(x + 7y)
B (3x + y)(2x - 7y)
C (3x + y)(x - 7y)
D (3x - y)(2x + 7y)

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