If a = 3 and b = -7, find the value of \(\frac{5b+(a+b)^2}{(a-b)^2}\)
MATHEMATICS
WAEC 2022
If a = 3 and b = -7, find the value of \(\frac{5b+(a+b)^2}{(a-b)^2}\)
- A. 0.51
- B. 0.91
- C. -0.19
- D. -0.51
Correct Answer: C. -0.19
Explanation
\(\frac{5b+(a+b)^2}{(a-b)^2}\)
= \(\frac{5 * -7 +(3+ -7)^2}{(3- -7)^2}\)
= \(\frac{-35 + 16}{10^2}\)
= \(\frac{-19}{100}\) or -0.19
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