185k views
2 votes
3√5•3√2 =
A. √10
B. 9√10
Which one? ​

1 Answer

5 votes

Answer: Choice B

Work Shown:


x = 3√(5)*3√(2)\\\\x = (3*3)(√(5)√(2))\\\\x = 9√(5*2)\\\\x = 9√(10)\\\\

The rule used on line 3 is
√(A)*√(B) = √(A*B)

User Taren
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