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OpenStudy (anonymous):
simplify (3a^2-4ab+b^2)-(-2a^2+4ab+b^2) 3a^2-4ab+b^2+2a^2-4ab-b^2 my answer is 5a^2-8ab
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OpenStudy (amistre64):
your answer is correct, but to simplify they might want you to take it a step further and take out the greatest common factor. like this: a(5a -8b) other than that, you did a great job :)
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