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Algebra 16 Online
OpenStudy (anonymous):

What is the simplest form of the expression? sqrt20+sqrt45-sqrt5

OpenStudy (across):

Try and find the prime-power decomposition of each number.

OpenStudy (anonymous):

idk what that is

OpenStudy (anonymous):

5?

OpenStudy (across):

That is, the number \(20\) has prime-power decomposition \(2^2\cdot5\).

OpenStudy (across):

The number \(45\) has prime-power decomposition \(3^2\cdot5\).

OpenStudy (anonymous):

i figured it out.. (:

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