Question

(x-1)(x+1)+x(1-x)=4x(2x+1)-8x(x-2)
Pls resolucion

Answer 1

(x^2-1)+x-x=8x^2+4x-8x^2+16x
x^2-1=20x
x^2-20x-1=0

Answer 2

Hola!

$(x-1)(x+1)+x(1-x)=4x(2x+1)-8x(x-2)$

$x^{2}-1+x-x^{2}=8x^{2}+4x+-8x^{2}+16x$

$-1+x=20x$

$19x =-1$

$x=-\frac{1}{19}$

salu2!!