Question

Factor trinomials x^2-7x-30

Answer 1

x^2-7x-30​

Find two numbers a,b

a • b = -30

a+ b= -7

divide by a

b= -30/a

If Then a = -10

b = -30/-10= 3

Now factorize

x^2-7x-30​ = (x -10)• (x + 3)

Answer is

(x - 10)•(x + 3)