Simplify the radical expression below. 3 √(7) - √(63)

Question

Simplify the radical expression below.


`3 √(7) - √(63)`

Answer 1

So for this, we can simplify √63 as such:

`√(63)=√(7*9)=3√(7)`

Using the simplified version of √63, we can solve it:

`3√(7) -3√(7) =0`

Zero is your final answer.