Respuesta :

apologiabiology
so (√39)(√(6+7))
simplify 6+7==13
remember
√x√y=√xy so
√39√13=√(39 times 13)=√507
factor 507 and group any pairs
507=13 times 13 times 3
pairs are 13 so take them out of the √ sign
13√3 is the answer

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