Question

cuanto sale esto:
(4x-1)(2x+3)=(x+3)(x-1)

Answer 1

(4 x - 1 ) ( 2 x + 3 ) = ( x + 3 ) ( x - 1)
8x² + 1 2 x - 2 x - 3 = x² + 2 x - 3
8 x² - x² + 1 0 x - 2 x= 0
7 x ² + 8 x =0
x ( 7 x + 8 ) = 0

x= 0  ^ X= - 8/7