Hi everyone,

I know that the common method is like this :

x^2 + 5x + 4

Sum = 4

product = 5

so a = 1 and b = 4

=(x+1)(x+4)

If I know the product is 36 (9*4) , how does knowing a= -6 b=-6 help me to find the factorized form of (3x-2)(3x-2) ?

9x^2 -12x +4

Sum = -12

product = 36

a= -6 b=-6

= 9x^2 -6x-6x+4

(3x-2)(3x-2)