Question

(2х2-х)+(3х-5)-(х2-5)

Answer 1

$({2x}^{2} - x) + (3x - 5) - ( {x}^{2} - 5) = {2x}^{2} - x + 3x - 5 - {x}^{2} + 5 = {x}^{2} + 2x$