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5 November, 02:42

4+3x the (x has an exponent of 4) = 81

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  1. 5 November, 02:47
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    x = 2.25 (Approximately)

    Step-by-step explanation:

    4 + 3x^4 = 81

    4 - 4 + 3x^4 = 81 - 4

    3x^4 = 77

    (3x^4) / 3 = 77/3

    x^4 = 25.67 (Approximately)

    x = 2.25 (Approximately)
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