-1x^2 + 12x - 27 = 0
-1(x^2 - 12x + 27) = 0
-1 (x )(x ) ( -9)( -3)=0
-(x-9) (x-3) = 0
Solve:
-(x-9) =0
-(x) (-1)(-9) =0
-x+9=0
-x+9-9=0-9
-x=-9
-x/-1=-9/-1
x=9
Solve:
-1(x-3) = 0
-1(x) (-1)(-3) = 0
-x+3=0
-x+3-3=0-3
-x=-3
-x/-1=-3/-1
x=3