Posted by RJ on .
given the quadratic function f(x)
4x^2 -24x +36 find the value of x such that f(x)=4
4x^2 -24x +36 = 4
4x^2 - 24x + 32 = 0
x^2 - 6x + 8 = 0
(x-4)(x-2) = 0
looks like there are two values for x.