Question

Which expression is the factorization of x2 + 10x + 21?

N
O
(x + 3)(x + 7)
(x + 4)(x + 6)
(x + 6)(x + 15)
(x + 7)(x + 14)

Answer 1

A.) (x+3)(x+7)

Explanation:

Answer 2

(x + 3)(x + 7)

Explanation:

Find two numbers that when added up to , they ALSO have to multiply up to 21. This is simple because of the fact that there is no leading coefficient greater than 1⃣.