How do you factor x3+6x2+3x−10?

1 Answer
Nghi N.
Apr 10, 2016

y = (x - 1)(x + 2)(x + 5)

Explanation:

Since a + b + c + d = 0, f(1) = 0. One factor is (x - 1).
After division -->
y=(x−1)(x2+7x+10)
The trinomial in parentheses can be factored
Find 2 numbers knowing sum (7) and product (10). They are 2 and 5.
x2+7x+10=(x+2)(x+5)
y=(x−1)(x+2)(x+5)

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