Question

_____3x²-12________
(x+2) . (x-2) para: x= -3/2

Answer 1

x²-12 sobre (x+2).(x-2) sendo: x= -3/2
3(x² - 4) =   3(x+2)(x-2) ==> 3
(x+2)(x-2)     (x+2)(x-2)