Factor and solve -1x^2 + 7x - 12 = 0

-1x^2 + 7x - 12 = 0

-1(x^2-7x+12)=0

-1 (x )(x ) ( -4)( -3)=0

-1(x-4) (x-3) = 0

Solve:

-1(x-4)=0

-1(x) (-1)(-4)=0

-1x+4=0

-1x+4-4=0-4

-1x=-4

-1x/-1=-4/-1

x=4

Solve:

-1(x-3) = 0

-1(x) (-1)(-3) = 0

-1x+3=0

-1x+3-3=0-3

-1x=-3

-1x/-1=-3/-1

x=3