Question

equação 2º grau
3x²-3=2(x-1)²

Answer 1

$3x^2 - 3=2(x-1)^2\\ 3x^2 -3 =2(x^2 -2x +1)\\ 3x^2 -3 =2x^2 -4x+2\\ x^2+4x-5=0\\\\ x=\dfrac{-4\pm \sqrt{4^2-4\cdot1\cdot(-5)}}{2}\\\\ x=\dfrac{-4\pm \sqrt{36}}{2}\\\\\\ x_1=\dfrac{-4+ 6}{2}=1\\\\ x_2=\dfrac{-4-6}{2}=-5$