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Mathematics 14 Online
OpenStudy (theyankee):

Higher roots with exponents?

OpenStudy (theyankee):

How do I simplify?

Nnesha (nnesha):

factor x^{16} remember exponent rules \[\huge\rm x^m \times x^n = x^{m+n}\]

Nnesha (nnesha):

so you can write x^5 times x^5 times x^5 times x which is equal to ??

Nnesha (nnesha):

\[\huge\rm x^5 \times x^5 \times x^5 \times x= x^?\]

Nnesha (nnesha):

when we multiply same bases we should add their exponents :-) exponent rules \[\huge\rm x^m \times x^n = x^{m+n}\]

OpenStudy (theyankee):

So, would it look like this?

Nnesha (nnesha):

\[\huge\rm x^5 \times x^5 \times x^5 \times x= x^?\] you didn't answer my question :(

OpenStudy (theyankee):

Wouldn't it be x^16? (I have such a problem with these >.< )

Nnesha (nnesha):

yes right

Nnesha (nnesha):

now factor them under the 5th root \[\huge\rm \sqrt[5]{x^5 \times x^5 \times x^5 \times x }\] just like square can cancelz out with square same idea here &that's why we have to make a pair of five exponent so we cancel them with 5th root solve that

Nnesha (nnesha):

you can convert root to exponent \[\huge\rm \sqrt[n]{x^m}= x^\frac{ m }{ n }\]

OpenStudy (theyankee):

Oh! Alright! I didn't know that! (Please excuse my ineptitude... I'm a history person, lol....)

OpenStudy (theyankee):

Huh! Would it be X^4, then?

Nnesha (nnesha):

convert 5th root to exponent

OpenStudy (theyankee):

When you convert to an exponent, Each 5th root would result in one, correct? Making it just X instead of x rasied to a power.

Nnesha (nnesha):

yes right but x is same as x to the one power x^1

OpenStudy (theyankee):

True. So because each x factor would result in x^1, I'm thinking the end result would be X^4.

Nnesha (nnesha):

\[\huge\rm \sqrt[5]{x^5 \times x^5 \times x^5 \times x }\] \[\huge\rm x^\frac{5 }{ 5 } \times x^\frac{ 5 }{ 5 } \times x^\frac{ 5 }{ 5 } \times x^\frac{ 1 }{ 5 }\] so it should be like this

Nnesha (nnesha):

\[\huge\rm \sqrt[5]{x^5 \times x^5 \times x^5 \times\color{reD}{ x} }\] red x doesn't have power so you cannot cancel 5th root. it should stay under the 5th rot \[\huge\rm x^\frac{5 }{ 5 } \times x^\frac{ 5 }{ 5 } \times x^\frac{ 5 }{ 5 } \times x^\frac{ 1 }{ 5 }\] so it should be like this

OpenStudy (theyankee):

Omg! It makes sense now! Would it be x^3 5^(sqrt) x? (I'll model that answer in a second. Thanks for your patience ^^)

Nnesha (nnesha):

yes!

Nnesha (nnesha):

np :-)

OpenStudy (theyankee):

To confirm, like this?

Nnesha (nnesha):

yes

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