(5 mũ 4 – 5 mũ 3 )mũ 3 /125 mũ 5 =64/25 mũ 3

Question

(5 mũ 4 – 5 mũ 3 )mũ 3 /125 mũ 5 =64/25 mũ 3

in progress 0
Euphemia 1 year 2020-11-27T05:10:12+00:00 2 Answers 42 views 0

Answers ( )

    0
    2020-11-27T05:11:13+00:00

    Đáp án:

    `=64/15625`

    Giải thích:

    `[(5^4-5^3)^3]/[125^5`

    `=[(625-125)^3]/[(5^3)^5]`

    `=[(500)^3]/5^(3.5)`

    `=[(5.100)^3]/5^(3.5)`

    `=[5^3. 100^3]/5^15`

    `=(1.100^3)/(5^12)`

    `=100^3/5^12`

    `=(5.5 .4)^3/5^12`
    `=(5^3 . 5^3 . 4^3)/(5^12)`
    `=[5^(3+3 ). 4^3]/5^12`
    `=(5^6 . 4^3)/5^12`
    `=(1.4^3)/(5^6)`
    `=4^3/5^6`
    `=64/15625`

    0
    2020-11-27T05:11:35+00:00

    Đáp án:

    `=100^3/5^12`

    Giải thích các bước giải:

    `[(5 ^ 4 – 5 ^ 3 )^ 3 ]/125 ^ 5`

    `=[(625-125)^3]/[(5^3)^5]`

    `=500^3/5^15`

    `=[(100.5)^3]/[5^15]`

    `=[100^3 . 5^3]/[5^15]`

    `=100^3/5^12`

Leave an answer

Browse

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