Question

√18x^6
What to do?

Answer 1

√(18x^6)

Answer 2

prime factorize everything inside the radical, and eliminate those factors that appear twice. Move them to the outside. So \[\sqrt{18x^{6}}=\sqrt{2\times3\times3 \times x^{3} \times x^{3}}=3x^{3}\sqrt{2}\]