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19 March, 06:42

Solve each radical equation. Be sure to check your solutionsa) √ (2x-3) = 11b) ∛ (6-x) = -3

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  1. 19 March, 10:39
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    a) x = 62

    b) x = 33

    Step-by-step explanation:

    Hi there!

    a) Let's write the equation:

    √ (2x-3) = 11

    Square both sides

    2x - 3 = 121

    add 3 to both sides of the equation

    2x = 124

    divide by 2 both sides

    x = 62

    Let's check:

    √ (2x-3) = 11

    x = 62

    √ (2 (62) - 3) = 11

    √ (124-3) = 11

    √121 = 11

    11 = 11

    x = 62 satisfies the equation

    b) Let's write the equation:

    ∛ (6 - x) = - 3

    Cube both sides

    6 - x = - 27

    subtract 6 to both sides

    -x = - 27 - 6

    -x = - 33

    divide by - 1 both sides

    x = 33

    Now, let's check the result:

    ∛ (6 - x) = - 3

    x = 33

    ∛ (6 - 33) = - 3

    ∛ (-27) = - 3

    -3 = - 3

    x = 33 satisfies the equation
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