Question

Factor: x2 - 11x + 30

Answer 1

Ask which two numbers add up to -11 and multiply to 30?

That would be; -6 and -5

Rewrite the expression using what you have above;

(x - 6)(x - 5)

Answer 2

(x-6) (x-5)

Explanation:

x^2 - 11x + 30

What two numbers multiply together to give us 30 and add together to give us -11

-6*-5 = 30

-6+-5 = -11

(x-6) (x-5)