Question

Solve :

$x^2-7x+12=0$

Answer 1

Given the quadratic equation is,

$x^2-7x+12=0$

or, $x^2-3x-9x+12=0$

or, $x(x-3)-9(x-3)=0$

or, $(x-3)(x-9)=0$

or, $x=9,3$.