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25 February, 12:02

Solve the simultaneous equations y=x^2+x+1 and x+2y=4

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  1. 25 February, 12:35
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    Set them equal

    x^2+x+1 = (-x+4) / 2

    *2 * 2

    2x^2+2x+2=-x+4

    -4 - 4

    2x^2 + 2x-2=-x

    +x + x

    2x^2 + 3x - 2
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