You can
put this solution on YOUR website!Since

is the only solution (and we're dealing with a quadratic), this means that the solution

occurs twice. So this means that the solutions are

or

or

Subtract 8 from both sides for each equation

Combine the equations using the zero product property

FOIL
So the equation

has the solution

(with a multiplicity of 2)
You can
put this solution on YOUR website!quadratics have two solutions (roots) __ if 8 is the "only" solution, then it is a double root (perfect square)
if r is a root, then x-r is a factor
(x-8)^2=0 __ x^2-8x-8x+64=0 __ x^2-16x+64=0