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3 October, 01:51

If 4x^2-100=0 the roots of the equation are

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  1. 3 October, 04:53
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    Your equation: 4x² - 100 = 0

    Factor the left side: (2x + 10) · (2x - 10) = 0

    This equation is true if either factor is zero.

    - - One factor: 2x + 10 = 0

    Divide each side by 2: x + 5 = 0

    Subtract 5 from each side: x = - 5.

    - - The other factor: 2x - 10 = 0

    Divide each side by 2: x + 5 = 0

    Add 5 to each side: x = 5.
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