Question

Solve : $x^2-11x+30=0$

Answer 1

$x^2-11x+30=0$

$\Rightarrow x^2-5x-6x+30=0$

$\Rightarrow x(x-5)-6(x-5)=0$

$\Rightarrow (x-6)(x-5)=0$

So $x=5,6$.