How do you simplify 3√5⋅√5?

1 Answer
mason m
Jun 3, 2016

15

Explanation:

Don't be confused by what 3√5 means. It is just the multiplication of 3 and √5, so 3√5=3⋅√5.

Therefore 3√5⋅√5=3⋅√5⋅√5.

We see that √5⋅√5=5, so our expression becomes

3√5⋅√5=3⋅(√5⋅√5)=3⋅5=15.

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