What is the solution to the equation below? log20x3-2logx=4

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What is the solution to the equation below? log20x3-2logx=4

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Acacia 4 years 2021-07-20T06:54:54+00:00 1 Answers 33 views 0

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  1. mit
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    2021-07-20T06:55:58+00:00
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    Step-by-step explanation:

    log(20 {x}^{3} ) - 2 log(x) = 4 \\ log(20 {x}^{3} ) - log( {x}^{2} ) = 4 \\ log( \frac{20 {x}^{3} }{ {x}^{2} } ) = 4 \\ log(20 x ) = 4 \\ 20x = {10}^{4} \\ 20x = 10000 \\ x = 500

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