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Mathematics 56 Online
OpenStudy (saifoo.khan):

Myininya is here to help me with last problems~!

OpenStudy (saifoo.khan):

jimthompson5910 (jim_thompson5910):

\[\large \sqrt[5]{128x^7y^25}=2xy^5\sqrt[5]{4x^2}\]

jimthompson5910 (jim_thompson5910):

Recognize that 128 = 32*4, x^7 = x^5*x^2, and y^25= (y^5)^5

jimthompson5910 (jim_thompson5910):

oops typo, \[\large \large \sqrt[5]{128x^7y^{25}}=2xy^5\sqrt[5]{4x^2}\]

OpenStudy (saifoo.khan):

what about this one?

OpenStudy (saifoo.khan):

thanks jim, that is correct.

jimthompson5910 (jim_thompson5910):

\[\large \frac{\sqrt[3]{2y^4}}{\sqrt[3]{10x^4}}=\frac{y\sqrt[3]{25x^2y}}{5x^2}\]

OpenStudy (saifoo.khan):

Thanks! :)

jimthompson5910 (jim_thompson5910):

np

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