Evaluate \(\frac{(3.2)^2 - (4.8)^2}{3.2 + 4.8}\)
MATHEMATICS
WAEC 2008
Evaluate \(\frac{(3.2)^2 - (4.8)^2}{3.2 + 4.8}\)
- A. -0.08
- B. -1.60
- C. -10.24
- D. -12.80
Correct Answer: B. -1.60
Explanation
\(\frac{(3.2)^2 - (4.8)^2}{3.2 + 1.8} = \frac{(3.2 - 4.8)(3.2 + 4.8)}{(3.2 + 4.8)}\)
= 3.2 - 4.8
= -1.60
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