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MATH HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASE reposting cause no one answered them

MATH HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASE reposting cause no one answered-example-1
User Jknielse
by
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1 Answer

4 votes

A

since the 3 is outside the radical then
√(9) = 3, hence

x = 9

B

using the law of radicals


√(a) ×
√(b) =
√(ab)

we can separate the factors as


√(24) × √
x^(10) × √
y^(5)

= 2
√(6)
x^(5)
y^(5/2)

C


√(121) +
√(50) = 11 + 5
√(2)

D


√(20) ×
√(63)

= 2
√(5) × 3
√(7)

= 6
√(35)




User Parinda Rajapaksha
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7.3k points