Factor and solve: -1x^2 + 11x - 28 = 0

-1x^2 + 11x - 28 = 0

-1(x^2-11x+28)=0

-1(x )(x ) ( -7)( -4)=0

-1(x-7) (x-4) = 0

Solve:

-1(x-7)=0

-1(x) (-1)(-7)=0

-1x+7=0

-1x+7-7=0-7

-1x=-7

-1x/-1=-7/-1

x=7

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