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Mathematics 14 Online
OpenStudy (anonymous):

please help!!!!!! Simplify this radical? Picture below

OpenStudy (anonymous):

OpenStudy (helder_edwin):

just cobine like terms. imagine for the sake of simplicity that \[ \large A=\sqrt[4]{10}\qquad\text{and}\qquad B=\sqrt[3]{10} \]

OpenStudy (helder_edwin):

so your expression would be \[ \large 9A+2B-6A-6B \]

OpenStudy (anonymous):

Simple enough

OpenStudy (anonymous):

\[3 ^4√20 - 4 ^3√20\]

OpenStudy (anonymous):

Is that right?

OpenStudy (helder_edwin):

yes. the powers of the roots look odd, though.

OpenStudy (anonymous):

(I should've written it with the exponents right along the radical sign)

OpenStudy (anonymous):

Thank you for your help

OpenStudy (helder_edwin):

it should be \[ \large 3\sqrt[4]{10}-4\sqrt[3]{10} \]

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