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Find the value of m which makes x 2 8 m a perfe... - WAEC Mathematics 1990 Question

Find the value of m which makes x\(^2\) + 8 + m a perfect square

A
2
B
4
C
8
D
12
correct option: e

x\(^2\) + 8 + m

To make it a perfect square, we add \((\frac{b}{2})^2\)

= \((\frac{8}{2})^2\)

= 16

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