Question

Combine the radicals using addition and subtraction, if possible.

9√24−5√6+3√54 ?

(1 point)
Responses

22√6

22 square root of 6

4√6

4 square root of 6

42√2

Answer 1

√24 = 2√6 and √54 = 3√6, so

9√24 − 5√6 + 3√54 = 9(2√6) − 5√6 + 3(3√6) = 18√6 − 5√6 + 9√6 = 22√6.