Which Expression Is The Factorization of x^2+10x+21?

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asked Jan 8, 2020 229k views

1 Answer

Vinod Jadhav · Answer 1 · 2020-01-13T07:59:21+0000

What multiplies to 21 that also adds up to 10? 7 and 3 would be your answer.
So, the expression (x + 7)(x + 3) is the factorization of x2+10x+21
To see if this answer is correct, FOIL it:
x2+3x+7x+21
x2+10x+21
Hope I helped!

Which Expression Is The Factorization of x^2+10x+21?

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