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Factor -7x^3+21x^2+3x-9 by grouping
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Factor -7x^3+21x^2+3x-9 by grouping

User Jacory
by
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1 Answer

4 votes

Answer:


(-7x^2+3)(x-3)

Explanation:

We can take "common" from first 2 terms and common from next 2 terms. Shown below:


-7x^3+21x^2+3x-9\\-7x^2(x-3)+3(x-3)\\(-7x^2+3)(x-3)

That's how we do it. We can't simplify, or factor, any further.

User Naruto Biju Mode
by
5.4k points
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