Question

7\sqrt{7}-2\sqrt{7}
`7√(7)-2√(7)`

Answer 1

Given:

The radical expression is

`7√(7)-2√(7)`

To find:

The simplified value of the given expression.

Solution:

We have,

`7√(7)-2√(7)`

Taking out the common factors, we get

`7√(7)-2√(7)=(7-2)√(7)`

`7√(7)-2√(7)=5√(7)`

Therefore, the simplified form of the given expression is
`5√(7)`.