Question

Which of the binomials below is a factor of this trinomial x^2-12x+35?

A. x-5
B. x+5
C. x^2+12
D. x+70

Answer 1

A.

Explanation:

The trinomial
`x^2-12x+35` is of the form
`x^2+bx+c`. Then, it can be factored by searching two numbers that added are -12 and multiplied are 35. Those numbers are -7 and -5. Then,

`x^2-12x+35 = (x-7)(x-5)`

So, the answer is A.