To add and subtract radicals is easy! Just simplify the radicals as much as you can, and then add/subtract any like terms.

Lessons

• 1.
a)
How to simplify radicals?

b)
6$\sqrt{12}$+ 3$\sqrt{8 }$ - 5$\sqrt{18 }$ - 3$\sqrt{3}$
${^3}\sqrt{-48}$ - ${^3}\sqrt{162}$