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Algebra 20 Online
OpenStudy (djjo):

Will give medal! How do I simplify the square root of the fourth root of 8 in exponential form?

OpenStudy (djjo):

OpenStudy (anonymous):

\[\sqrt{\sqrt[4]{8}}=\sqrt{8^{\frac{ 1 }{ 4}}}=(8^{\frac{ 1 }{ 4 }})^{\frac{ 1 }{ 2 }}=8^{\frac{ 1 }{ 8}}=(2^{3})^{\frac{ 1 }{ 8 }}=2^{\frac{ 3 }{ 8 }}\]

OpenStudy (djjo):

But I'm confused on how you got that @peachpi

OpenStudy (anonymous):

how is it confusing? things to power are multiplied with each other

OpenStudy (anonymous):

square root is the same as the exponent ½ fourth root is exponent ¼

OpenStudy (djjo):

oh ok thank you @peachpi

OpenStudy (djjo):

@peachpi Would you mind if I ask you another question?

OpenStudy (anonymous):

ok

OpenStudy (djjo):

How would I simply this expression in exponential form?

OpenStudy (anonymous):

ok. this is the same type of problem. How would you write the numerator with an exponent?

OpenStudy (djjo):

3 and 1/2

OpenStudy (anonymous):

exponents with bases being divided are subtracted eg. 3^(1/2) / 3^(1/4) = 3^ ((1/2) - (1/4))

OpenStudy (anonymous):

Yeah. Then √3 is also a part of the denominator so you can do this |dw:1434904015717:dw|

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