Question

Factorise
(x-3)^2 - 36​

Answer 1

please refer to the image attached

Answer 2

Answer:

$x^{2}$ -6x + 9-36=0

$x^{2}$ -6x -27=0

$x^{2}$ -9x +3x -27=0

x(x-9)+3(x-9)=0

(x-9)(x+3)=0

x= -3  or  x=9