Factor and solve -1x^2 + 17x - 72 = 0

-1x^2 + 17x - 72 = 0

-1(x^2-17x+72)=0

-1(x )(x ) ( -9)( -8)=0

-1(x-9) (x-8) = 0

Solve:

-1(x-9)=0

-1(x) (-1)(-9)=0

-1x+9=0

-1x+9-9=0-9

-1x=-9

-1x/-1=-9/-1

x=9

Solve:

-1(x-8) = 0

-1(x) (-1)(-8) = 0

-1x+8=0

-1x+8-8=0-8

-1x=-8

-1x/-1=-8/-1

x=8