Question

12x3 - 20x2 = -11x + 2
é 12x elevado a 3

Answer 1

$12x^3-20x^2=-11x+2\\12x^3-20x^2-2=-11x+2-2\\12x^3-20x^2-2=-11x\\12x^3-20x^2-2+11x=-11x+11x\\12x^3-20x^2+11x-2=0\\\\\\\left(2x-1\right)^2\left(3x-2\right)=0\\\\Solucao\\\\x=\frac{1}{2},\:x=\frac{2}{3}$