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11 October, 18:21

Use the intersect method to solve equation x^2-1=-x^2+7

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Answers (2)
  1. 11 October, 18:54
    0
    The solution is the intersection of the graph with the x-axis

    x=2, x=-2
  2. 11 October, 20:24
    0
    X^2+x^2=7+1

    2X^2=8

    X^2=4

    X=2, X=-2
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