Question

Solve:
$x^2+5x+6=0$

Answer 1

Now,

$x^2+5x+6=0\Rightarrow x^2+2x+3x+6=0x\left(x+2\right)+3\left(x+2\right)=0$

or, $(x+3)(x+2)=0$

or, $x=-3,-2$.