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How do I do this ??
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4 votes
How do I do this ??

How do I do this ??-example-1
User Barbushin
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2 Answers

5 votes
-4x^2 * 3x = -12x^3
-4x^2 *-7 = +28x^2
So since you can’t add them together the answer is the second one
User Shiv Buyya
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5.9k points
5 votes
 the answer is b.) -12x^3+28x^2
User Eucalculia
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