Question

find the sum.

13√10 + 8√10

Answer 1

It's like 13x + 10x. Since the radical part is the same, you keep it the same and just add the number in front (like adding the coefficients of like terms).

Add the outside numbers, keep the sqrt10 the same.

Answer 2

21√10 ?

Answer 3

21 √ 10

Answer 4

Sorry, I typed my example wrong! It's like 13x + 8x...Not sure where I got the 10? :)

YES! That's it!

Answer 5

\[21\sqrt{10}\]

Answer 6

thank you :))

Answer 7

You're welcome!