Factor and solve -1x^2 + 4x + 45 = 0

-1x^2 + 4x + 45 = 0

-1(x^2-4x-45)=0

-1(x )(x ) ( -9)( +5)=0

-1(x-9) (x+5) = 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+5) = 0

-1(x) (-1)(+5) = 0

-1x-5=0

-1x-5+5=0+5

-1x=5

-1x/-1=5/-1

x=-5