simplify 2^x+4-2^x/5*2^x step by step

Question

simplify 2^x+4-2^x/5*2^x
step by step

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Euphemia 2 weeks 2021-07-21T21:18:20+00:00 2 Answers 2 views 0

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    0
    2021-07-21T21:19:44+00:00

    that answer is to correct to support

    0
    2021-07-21T21:20:00+00:00

    Answer:

    4/ 5 x 2^x

    Step-by-step explanation:

    2^x +4-2^x / 5^2

    First we multiply everything by 5^2/5^2

    2^x + 4-2^x (5^2x) / (5^2)(5^2)

    = 2^x + 4-2^x 5^2x we see 2 x 5^2

    = 2^x+4-2 x 5^2x +5^2x   / (5^2)(5^2x) 2^x cancels with 2^x as subtraction and 5^2x base cancels with top also

    = 4/ 5 x 2^x

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