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15 June, 18:39

Describe each step taken to solve the equation. Then, check the solution to see if it is valid. If it is not a valid solution, explain why a) √x+6=4b) ∛x+6=4.

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  1. 15 June, 21:21
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    Step-by-step explanation:

    given,

    a) √x + 6 = 4

    to solve the above equation subtract both side with 6

    √x + 6 - 6 = 4 - 6

    √x = - 2

    squaring both side

    (√x) ² = (-2) ²

    x = 4

    a) ∛x + 6 = 4

    to solve the above equation subtract both side with 6

    ∛x + 6 - 6 = 4 - 6

    ∛x = - 2

    cubing both side

    (√x) ³ = (-2) ³

    x = - 8
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