- #1

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(3x^2-12x)(3x^2+6x) or

3(3x^2-12x)(x+2)

- Thread starter dcgirl16
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- #1

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(3x^2-12x)(3x^2+6x) or

3(3x^2-12x)(x+2)

- #2

berkeman

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And on your question, for me it's easiest to multiply it out first before taking the derivative, at least in this particular problem.

- #3

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- #4

Dick

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DO NOT MULTIPLY BOTH FACTORS BY THE FIRST FACTOR. Multiplication doesn't work that way! Jeez! And you should get the same answer no matter how you do it. If you are dubious it's worth trying both ways.

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