Question

2x(x+1)-3(12-x)=x(x+5) por favor me ajudem preciso dessa conta montada 

Answer 1

$2x(x+1)-3(12-x)=x(x+5) \\ \\ 2x^2+2x-36+3x=x^2+5x \\ \\ 2x^2-x^2+2x-5x+3x-36=0 \\ \\ x^2-36=0 \\ \\ x^2=36 \\ \\ x=\sqrt{36} \\ \\ x=+-6$

Answer 2

$2x(x+1)-3(12-x)=x(x+5)$
$2x^{2}+2x-36+3x=x^{2}+5x$
$2x^{2}-x^{2}+2x+3x-5x-36$
$x^{2}= 36$
$x=\sqrt36$
$x=\pm6$
$S:[\pm6]$

Espero ter ajudado'