[tex] \qquad \qquad \rm \large \dag \: Answer \: \dag[/tex]
We have been given a Quadratic equation, where we have to find the real values of x ~
So, let's proceed with middle term splitting method :
[tex]\qquad \sf \dashrightarrow \: {x}^{2} + 5x - 6 = 0[/tex]
[tex]\qquad \sf \dashrightarrow \: x {}^{2} + 6x - x - 6 = 0[/tex]
[tex]\qquad \sf \dashrightarrow \: {x(}^{} x + 6) - 1(x + 6) = 0[/tex]
[tex]\qquad \sf \dashrightarrow \: (x + 6)(x - 1) = 0[/tex]
Now, we have two conditions here~
Either (x + 6) = 0
[tex]\qquad \sf \dashrightarrow \: x = - 6[/tex]
or (x - 1) = 0
[tex]\qquad \sf \dashrightarrow \: x = 1[/tex]