Question

How many solutions does this quadratic equation have ? y=x^2-8x-20

Answer 1

Answer: y=x+2 or x-10

Explanation:

Y=x2-8x-20

Quadratic equation

Variables of -20 that will give -8 are

-10 &+2

Substitute into the equation

Y=x2-10x+2x-20

Y=x(x-10)+2(x-10)

Y=(x+2)(x-10)

The two equations are

Y=x+2 or

Y=x-10