1/4x²+11=38 solve by square root method

Question

1/4x²+11=38
solve by square root method

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Thu Thủy 6 months 2021-07-20T03:24:03+00:00 1 Answers 9 views 0

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  1. thanhcong
    0
    2021-07-20T03:25:19+00:00
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    1/4 x^2 + 11 = 38

    multiply both sides by 4

    x^2 + 44 = 152

    x^× = 152 – 44

    x^2 = 108

    x = + or – 6 square root of 3

    x¹ = -6 square root of 3

    x² = +6 square root of 3

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )