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Mathematics 11 Online
OpenStudy (anonymous):

5square18-6square8

OpenStudy (epikrebel):

What do you mean when you say square?

OpenStudy (anonymous):

\[5\sqrt{18}-6\sqrt{8}\]

hartnn (hartnn):

can u factorize 18 ?

OpenStudy (epikrebel):

You simplify the squares \[5\sqrt{2*3*3}-6\sqrt{2*2*2}\]

OpenStudy (epikrebel):

The pairs come out of the square root because something times itself is x^2 and square root of x^2 is x. You will get this. \[5*3\sqrt{2}-6*2\sqrt{2}\]

OpenStudy (epikrebel):

So you will just subtract and get your answer. \[15\sqrt{2}-12\sqrt{2}=3\sqrt{2}\]

OpenStudy (epikrebel):

Do you understand?

OpenStudy (anonymous):

yes, thank you again

OpenStudy (epikrebel):

Okay then can you simplify the square root of 24?

OpenStudy (epikrebel):

\[\sqrt{24}\]

OpenStudy (epikrebel):

Or do an equation like \[\sqrt{54}-\sqrt{24}\]

OpenStudy (anonymous):

okay

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