x^+5x-6=0

x^+5x-6=(x+2)(x-3)
(x+2)(x-3)=0
x+2=0 or x-3=0
x=-2, or x=-3

check this please let me know if right.

almost

last part : if x-3=0 then x = 3

Also go directly from line 1 to line 3