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)
I'm on a timed test so please hurry!
A. (x + 3)(x + 7)
B. (x + 4)(x + 6)
C. (x + 6)(x + 15)
D. (x + 7)(x + 14)
I'm on a timed test so please hurry!
Answers
R_Scott
multiply the two numbers in each binomial pair ... you're looking for 21
Anonymous
Which expression is the factorization of x2 + 10x + 21?