This equation uses y and x so it cannot be factorised.
Let’s try the equation y^2 - 12y + 36 = 0
Look for two factors of 36 that add to -12.
This would be -6 and -6
(y - 6)(y - 6) = 0
(y - 6) must equal 0
y = 6
4(2x + 10)=0
8x + 40 = 0
8x = -40
x = -5
Reflected over the x-axis:

<span>. Hence, the original triangle is described by A'B'C'.</span>