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8 February, 16:19

Solve the rational equation 4/x=3x+2/x^2, and check for extraneous solutions.

x = 0; x = 2 is an extraneous solution

x = 2; x = 0 is an extraneous solution

x = 0; x = - 2 is an extraneous solution

x = - 2; x = 0 is an extraneous solution

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  1. 8 February, 18:09
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    x = 2 is a solution

    x = 0 is an extraneous solution

    (Option 2)

    Step-by-step explanation:

    4/x = (3x + 2) / x²

    4x² = 3x² + 2x

    x² - 2x = 0

    x (x - 2) = 0

    x = 0, x = 2

    Verification:

    4/x = (3x + 2) / x²

    At x = 2

    4/2 = [3 (2) + 2]/2²

    2 = 8/4

    2 = 2

    At x = 0

    4/0 = [3 (0) + 2]/0²

    Is undefined
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