Question

найдите корень уравнения 2х^2+4x-4=x^2+5x+(-3+x^2)

Answer 1

$2x { }^{2} + 4x - 4 - x {}^{2} + 5x + 3 - x {}^{2} = 0$
$9x - 1 = 0$
$x = frac{1}{9}$