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Mathematics 20 Online
OpenStudy (anonymous):

4+7 root 10 divide by root 2 +7 root 5

OpenStudy (espex):

Are you working with conjugates?

OpenStudy (anonymous):

OpenStudy (espex):

I would suggest you multiply the expression by the conjugate of the denominator, and simplify.

OpenStudy (anonymous):

i don't know how to multiply 4+7root10 and root 2 - 7 root 5

OpenStudy (espex):

The same as you would expand any other set of factors. FOIL

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