If xsquared + 4x = 32 then x = _____ and _____.
x^2 + 4x = 32 subtract 32 from both sides
x^2 + 4x - 32 = 0 factor
(x + 8) ( x - 4) = 0
Setting both factors to 0
x + 8 = 0 x - 4 = 0
subtract 8 from both sides add 4 to both sides
x = - 8 x = 4
