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Likurg_2 [28]
3 years ago
10

Square roots question??

Mathematics
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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