Question

How do you find the roots, real and imaginary, of `y=(x+1)(-5x+5)` using the quadratic formula?

Answer 1

`x=-1` or `x=1`

Explanation:

We do not Need the quadratic formula, since we get
`(x+1)(-5x+5)=0`
if `x+1=0`
or
`-5x+5=0`