How do you find the roots, real and imaginary, of #y=-5(x-3)^2-45 # using the quadratic formula?
To make this more strait forward lets convert the equation back to the form of
Square the brackets.
Multiply out the -5
Thus the quadratic formula states that
If you are ever not sure about factors do a quick sketch of a prime factor tree on the side of the page.
As there is a