Question

Please help! need answers in order to move on:) will give brainliest if you are correct!

Answer 1

Answer:

1) $x^{2/3}$

$3$ → index

$\sqrt[3]{x^{2} }$

$Index: 3$

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2) $7^{5/4}$

$=\sqrt[4]{7^{5} }$

$=(\sqrt[4]{7})^{5}$

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3) $\sqrt[7]{2^{3} }$

$=(2^{3} )^{1/7}$  $[\sqrt[x]{n} =n^{1/n} ]$

$=2^{3/7}$

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3) $\sqrt[12]{8^{4} }$

$y=(8^{4} )^{1/12}$

$y=(8)^{1/3}$

$y=(2)^{3\times 1/3}$

$y=2$

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4) $128^{3/7}$

$=\sqrt[7]{2\times 2\times2\times 2\times 2\times2\times 2}$

$=(2)^{3}$

$=8$

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OAmalOHopeO