Question

Simplify the expression 3x(x – 12x) + 3x2 – 2(x – 2)2. Which statements are true about the process and simplified product? Check all that apply.

Answer 1

$Heya$‼

$3x (x-12x)+3x^2-2(x-2)^2$

$= 3x^2-36x^2+3x^2-2(x^2+4-4x)$

$=3x^2+3x^2-36x^2-2x^2-8+8x$

$=-32x^2+8x-8$


$Now,we\:get\:a\:quadratic\:polynomial.$

$32x^2-8x+8=0$

$4x^2-x+1=0$

$4x^2-2x-2x+1=0$

$2x(x-1)-2(x-1)=0$

$(2x-2)(x-1)=0$

$(2x-2)=0\:or\:(x-1)=0$

$x=2/2 \: or \: x = 1$

$x=1 \:or\: x = 1$