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Pre-Algebra
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OpenStudy (anonymous):
does anybody now how do divide exponents?
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OpenStudy (anonymous):
generally you do not divide exponents
maybe you mean
\[\large \frac{b^m}{b^n}=b^{m-n}\]
OpenStudy (anonymous):
\[a^{m} * a^{n} = a^{m+n}\]
OpenStudy (anonymous):
mult by reciprocal
OpenStudy (anonymous):
yes but i dont understtand how to do it
OpenStudy (anonymous):
\[\large \frac{7^8}{7^5}=7^{8-5}=7^3\] for example
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OpenStudy (anonymous):
what is the problem
OpenStudy (anonymous):
\[\large \frac{x^6y^{10}}{x^3y^4}=x^{6-3}y^{10-4}=x^3y^6\]
OpenStudy (anonymous):
OpenStudy (anonymous):
and i dont understand that?
OpenStudy (anonymous):
\[\large \frac{y^6}{y^9}=\frac{1}{y^{9-6}}=\frac{1}{y^3}\]
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OpenStudy (anonymous):
if you want positive exponents
if you want negative exponents
\[\large \frac{y^6}{y^9}=y^{6-9}=y^{-3}\]
OpenStudy (anonymous):
same answer, since
\[\large y^{-3}=\frac{1}{y^3}\]
OpenStudy (anonymous):
\[\frac{ y^6 }{ y^9 }=\frac{ y^6 }{ y^6\cdot y^3 }=\frac{ \cancel {y^6 }}{ \cancel {y^6}}\cdot \frac{ 1 }{ y^3 }= \frac{ 1 }{ y^3 }=y^{-3} = y^{(6-9)}\]
OpenStudy (anonymous):
btw, this isn't dividing exponents... it's dividing exponentials
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