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Mathematics 18 Online
OpenStudy (anonymous):

how do you solve the following using properties of exponents...... -6(2x^-3)^2/10x^-2

OpenStudy (anonymous):

some properties we will need for this problem: \[(n ^{a})^b=n ^{a*b}\]

OpenStudy (anonymous):

\[\frac{ 1 }{ x ^{-a} }=\frac{ x ^{a}}{ 1 } =x^a\] \[\frac{ 1 }{ x^a }=\frac{ x ^{-a} }{ 1 }=x^{-a}\]

OpenStudy (anonymous):

we will also have to factor all of the numbers present in this fraction into lowest prime factorization form

OpenStudy (anonymous):

6=2*3 10=2*5

OpenStudy (anonymous):

oops, more properties

OpenStudy (anonymous):

\[\frac{x ^{a}}{x ^{b}}=x ^{a-b} AND \frac{x^{a}}{x^{-b}}=x^{a+b}\]

OpenStudy (anonymous):

\[\frac{ -6*(2x^{-3})^{2} }{ 10*x^{-2} }=\frac{ -6*2^2*x^{-6} }{ 10*x^{-2} }\]

OpenStudy (anonymous):

\[\frac{−6∗2^2*x^{−6}}{10∗x^{−2}}=\frac{−6∗2^2*x^{(2−6)}}{10}=\frac{−6∗2^2*x^{-4}}{10}\]

OpenStudy (anonymous):

\[\frac{−6∗2^2*x^{-4}}{10}=\frac{−2*3∗2^2*x^{-4}}{2*5}=\frac{−3∗2^2*x^{-4}}{5}=\frac{−2^2*3}{5}*x^{-4}=\frac{-12}{5}*x^{-4}\]

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