Question 30 Answer and Explanation _ACT September 2017 Asia Form 75A Math Section

Question 30 Answer and Explanation _ACT September 2017 Asia Form 75A Math Section

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30. If $b$ is any even integer, which of the following is a more simplified way to express $\left[ \dfrac{b+3}{b^{2}-9}\div \dfrac{1}{b-3}\right]$ ？

F. 1

G. 2

H. $\frac{1}{{b}^{2}+9}$

J. $\frac{2}{{(b-3)}^{2}}$

K. $\frac{1}{{b}^{2}-6b+9}$

Answer and Explanation

Your Answer is

Correct Answer is F

Explanation