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3 years ago

10

Square roots question??

2 answers:

adelina 88 [10]3 years ago

5 0

Two things you need to know.
a square root that is squared becomes the number under the root sign
the general formula is a^2 + 2ab + b^2
sqrt(5)^2 + 2*sqrt(5)*sqrt(3) + sqrt(3)^2
5 + 2sqrt(15) + 3
8 + 2sqrt(15) <<<<=====
Stop!
Don't go any further. That is your answer.

cluponka [151]3 years ago

3 0

√5²+2*√5*√3+√3²

5+7.7+3

15.7

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