PSAT Math Multiple-Choice Practice Question 764
Question: 764
6a2 + 8ab – 4ac is equivalent to which of the following expressions?
Correct Answer: B
Explanation:
(B) Factor out all common factors. 2a is a factor of all three terms, so it can be factored out:
2a(3a + 4b - 2c)
Alternatively, you could have redistributed the answer choices to eliminate choices (A), (C), and (D), which, respectively, equal, 3a2 + 4ab + 2ac, 4a2 + 4ab - 8ac, and 6a2 - 8ab + 4ac.
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