Question

X al cuadrado - 5x - 6 = 0

Answer 1

$x^{2} -5x - 6 = 0$

x             - 6

x             +1

-6x + x  = -5x

(x-6)(x+1) = 0

x-6 = 0         x+1 = 0

x = 6             x = -1

CS = ( -1 ; 6 )