Question

5y2 – 12y + 7 = (y – 1)( )

Answer 1

Try solving the left part of the equality using the general formula.

Answer 2

i got y(5y-12)

Answer 3

May I see what you did to obtain taht result?

Answer 4

When you factorize a quadratic expression
ax^2+bx+c=(px+q)(ux+v)=pu x^2+(pv+qu) x +qv

By comparing coefficients, we know the following relations:
a=pu
b=pv+qu
c=qv

In the given problem,
a=5,
b=-12
c=5
p=1
q=-1

Find u, v using the relations given above