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Mathematics 7 Online
OpenStudy (anonymous):

Help with Simplifying?

OpenStudy (ranga):

What is the question?

OpenStudy (anonymous):

\[\sqrt[x]{x^4 \times x^5 \times x^6}\]

OpenStudy (anonymous):

How would I go about simplifying this? I am very confused on what steps to take?

OpenStudy (anonymous):

@ranga

OpenStudy (ranga):

\[\Large a ^{m} \times a ^{n} = a ^{m+n}\]

OpenStudy (ranga):

what is the the number or letter outside the radical sign? It is too small for me to see.

OpenStudy (campbell_st):

well use the idex law from multiplication, which is add the powers as an example \[x^a \times x^b \times x^c = x^{a + b+c}\] and rewrite the radical in index form \[\sqrt{x} = x^{\frac{1}{2}}\] and the power of a power ruleis, multiply the powers \[(x^a)^b = x^{a \times b}\] so your problem is really \[(x^4 \times x^5 \times x^6)^\frac{1}{x}\]

OpenStudy (anonymous):

@ranga it is x

OpenStudy (anonymous):

@campbell_st Thank you sooooo much! That really helped.

OpenStudy (ranga):

Did you simplify it?

OpenStudy (anonymous):

Yes I was able to come up with the answer being \[x^4\]

OpenStudy (campbell_st):

wow... based on the question, the solution is \[\sqrt[x]{x^4 \times x^5 \times x^6} =x^{\frac{15}{x}}\]

OpenStudy (ranga):

\[\Large \sqrt[x]{x ^{4} \times x ^{5} \times x ^{6}} = (x ^{4} \times x ^{5} \times x ^{6})^{\frac{ 1 }{ x }} = (x ^{4 + 5 + 6})^{\frac{ 1 }{ x }} = (x ^{15})^{\frac{ 1 }{ x }} = x ^{\frac{ 15 }{ x }}\]

OpenStudy (ranga):

x^(15/x)

OpenStudy (anonymous):

oh really? okay thanks, I will go back and change my answer.

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