In+order+to+add+two+radicals,+what+needs+to+be+true+about+the+root?SEt3

5√ 3 + 4√ 27 + 2√ 9 = 6 + 17√ 3 You can only add or subtract radicals if they are like radicals, meaning they have the same root number and expression under the root (radicand.)

Answer: 3^5 + 3^12 + 3^4 = 6 + 3^17

3^21=3^17+6

3^21-3^17=6

3^4=6 Untrue