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^5 squareroot of x^20
*my answer x^4

^3 squareroot of 729/343
my answer: couldn't figure it out

use rational exponents to write ^3 squareroot of x * ^5 squareroot of 4x
my answer: ^15 squareroot 4x^8

  • algebra -

    ^3squareroot of 729/343

    you can use your calculator to figure this out and you will get 9/7.

    the last one, i will use a for x, and x for multiply

    if i use exponent for this, i will have x^1/3.(4x)^1/5

    then x^1/3.4^1/5.x^1/5
    = x^8/15.4^1/5
    = ^15squareroot of 4^3.x^8


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