Question

Match the expressions with their simplified versions.

Answer 1

Answer are in order from top to bottom

1. 8

2. square of 7

3. 1/2

4. 20

Answer 2

Explanation:

1.
`4√(2)*√(2) = 4*√(2)^(2)=4*2=8`

2.
`3√(7) -2√(7) =(3-2) √(7) = 1*√(7) =√(7)`

3.
`(√(7) )/(2√(7) ) =(1)/(2)`

4.
`2√(5) *2√(5) =2*2*√(5) *√(5)=4*5=20`