Factor and solve -1x^2 + 3x + 4 = 0

-1x^2 + 3x + 4 = 0

-1(x^2-3x-4)=0

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

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

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

-1x-1=0

-1x-1+1=0+1

-1x=1

-1x/-1=1/-1

x=-1