Question

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

A) (x + 3)(x + 7)
B) x + 4)(x + 6)
C) (x + 6)(x + 15)
D) (x + 7)(x + 14)

Answer 1

its choice A because when you distribute or foil you will get x2 + 10x + 21

Answer 2

the answer is A
hoped this helped!