Question

- (x pătrat +5x-1) + ( x pătrat - 5x+1)
Urgent va rog.

Answer 1

$- ( {x}^{2} + 5x - 1) + ( {x}^{2} - 5x + 1) \\ - {x}^{2} - 5x + 1 + {x}^{2} - 5x + 1$
x^2 se simplifica
= -10x + 2 = - 2( 5x - 1 )