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14 September, 12:19

How many solutions does the system have? y=-2x+1y=-2x2+1?

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  1. 14 September, 12:48
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    Set the equations to equal each other:

    -2x²+1=-2x+1

    Solve for x:

    -2x²+1=-2x+1

    -2x²+2x+1=-2x+2x+1

    -2x+2x+1-1=1-1

    -2x²+2x=0

    2x (-x+1) = 0

    2x=0 and - x+1=0

    2/2x=0/2 - x+x+1=0+x

    x=0 1=x

    There are two solutions, x=0,1
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