Question

How do you simplify `\sqrt { 2^ { 2} + 1. 5^ { 2} }`?

Answer 1

6.25

Explanation:

first, simplify the exponents.
`2^2=2*2=4`
`1.5^2=1.5*1.5=2.25`

`sqrt(4+2.25)`

Then, add the numbers inside the square root
`sqrt6.25`

The sqareroot of 6.25 is 2.5, because `2.5*2.5=6.25`