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1 vote
Mario was given the problem, 4x^2-16, to factor completely.

He wrote (2x + 4)(2x-4). Is he correct?

A. No, Mario should have factored out GCF as well. The correct answer is 2(x + 2)(x - 2)

B. No, Mario should have factored out GCF as well. The correct answer is 4(x + 2)(x - 2)

User Marmelador
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1 Answer

3 votes

Answer:

B is correct

Explanation:


4x^(2) -16 = (2x)^(2) - 4^(2) = (2x+4)(2x-4) = 2(x+2)2(x-2) = 4(x+2)(x-2)

User Nate May
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