Question

dados os polinômios F= x²-2x+1, G= x²+1 e H= x-1, calcule F-(G+H).

Answer 1

$F=x^2-2x+1\\G = x^2+1\\H = x - 1\\\\\\ F-(G+H)\\\\ x^2-2x+1-((x^2+1 )+ (x-1))\to\\\\ x^2-2x+1-(x^2+1 + x-1)\to\\\\x^2-2x+1-( x^2+x)\to\\\\ x^2-2x+1-x^2-x\to\\\\ x^2-x^2-2x-x+1\to \\\\ \large\boxed{-3x+1}$