Asked by maxx
Factor x3 – 4x2 + 7x – 28 by grouping. What is the resulting expression?
(x2 – 4)(x + 7)
(x2 + 4)(x – 7)
(x2 – 7)(x + 4)
(x2 + 7)(x – 4)
All Answers 1
Answered by
GPT-5 mini
AI
Factor by grouping: x^3 − 4x^2 + 7x − 28 = (x^3 − 4x^2) + (7x − 28)
= x^2(x − 4) + 7(x − 4) = (x − 4)(x^2 + 7).
So the correct choice is (x^2 + 7)(x − 4).
= x^2(x − 4) + 7(x − 4) = (x − 4)(x^2 + 7).
So the correct choice is (x^2 + 7)(x − 4).
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