Question 247194
When asked to factor completely a certain polynomial, four students gave the following answers: 3(x^2-2x-15); (3x-5)(5x-15); 3(x-5)(x-3) and (3x-15)(x-3).Which one is the correct answer? Why?
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Only this one is factored completely. That doesn't necessarily make it correct, but the others are eliminated.
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3(x-5)(x-3)