Add 2√8 + 3√8.(1 point)

To add 2√8 + 3√8, we first recognize that both terms have the same radicand of 8. Therefore, we can combine them by adding the coefficients:

2√8 + 3√8 = (2 + 3)√8 = 5√8

So, the sum of 2√8 and 3√8 is 5√8.

add √31 + √31

To add √31 + √31, we simply combine the like terms:

√31 + √31 = 2√31

So, the sum of √31 and √31 is 2√31.

subtract 7√5 - 4 √5

To subtract 7√5 - 4√5, we simply combine the like terms:

7√5 - 4√5 = (7 - 4)√5 = 3√5

So, the difference between 7√5 and 4√5 is 3√5.

subtract √29 - √29

To subtract √29 - √29, we can simplify the expression by combining the like terms:

√29 - √29 = 0

So, the difference between √29 and √29 is 0.