NECO Mathematics 2022 Objective — Question 10
Question 10 of 50 from the National Examinations Council (NECO) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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If a=3 and b=-7, find the value of [5b+(a+b)^2]/(a-b)^2.
- A. -0.51
- B. 0.19
- C. -0.19Correct
- D. -0.51
Explanation
[5(-7)+(3-7)^2]/(3-(-7))^2 = [-35+16]/100 = -19/100 = -0.19.
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