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24 July, 12:17

Solve the system of equations algebraically. Show all of your steps. Y=x2+2x y=3x+20

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  1. 24 July, 14:02
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    3x+20 = x^2+2x

    -3x-20 to both sides

    0 = x^2+2x-3x-20

    0 = x^2-X-20

    (X-5) (X+4)

    X-5=0

    X=5 answer

    X+4=0

    X=-4 answer
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