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12 January, 13:43

Find the solutions to the system of equations. x^2-y=4. 2x + y = - 1

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  1. 12 January, 14:21
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    Step-by-step explanation:

    x²-y=4

    y=x²-4

    2x+y=-1

    2x+x²-4=-1

    x²+2 x-3=0

    x²+3 x-x-3=0

    x (x+3) - (x+3) = 0

    (x+3) (x-1) = 0

    x=-3,1
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