Math

-1x^2 + 1x + 2 = 0 Solve for x

Asked by AnneS2 on 10 May 05:10

Last updated by anonymous on 12 May 11:37

1 Answers

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Answered by CherieS on 12 May 11:37

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

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

-1(x )(x ) ( -2)( +1)=0

-1(x-2) (x+1) = 0

Solve:

-1(x-2)=0

(-1)(x) (-1)(-2)=0

-1x+2=0

-1x+2-2=0-2

-1x=-2

-1x/-1=-2/-1

x=2

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