Factor the trinomial. x^2+7x+10

Question

Select the correct choice below.

(a) x^2+7x+10=?

(b) The trinomial is prime.

Answer 1

x² + 7x + 10 CAN be factored in a (x + a) (x+ b) fashion

First, find the factors of 10:

1, 2, 5, 10
2 + 5 = 7; so the numbers for a and b are 2 and 5

= (x + 2) (x + 5)

 

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