Source: Manhattan Prep
If \(a\neq 2\) and \(ab \neq 0,\) which of the following is equal to \(\dfrac{b(a^2-4)}{ab-2b}?\)
A. ab
B. a
C. a + 2
D. a^2
E. 2b
The OA is C
If \(a\neq2\) and \(ab\neq0,\) which of the following is equal to \(\dfrac{b(a^2-4)}{ab-2b}?\)
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Given: (b)(a^2 - 4)/(ab - 2b)BTGmoderatorLU wrote: ↑Wed Aug 04, 2021 8:28 amSource: Manhattan Prep
If \(a\neq 2\) and \(ab \neq 0,\) which of the following is equal to \(\dfrac{b(a^2-4)}{ab-2b}?\)
A. ab
B. a
C. a + 2
D. a^2
E. 2b
The OA is C
Factor the difference of squares in the numerator: (b)(a + 2)(a - 2)/(ab - 2b)
Factor out the b in the denominator: (b)(a + 2)(a - 2)/(b)(a - 2)
Simplify: a + 2
Answer: C