## Intermediate Algebra (6th Edition)

$6\sqrt3$
Since these are like terms, they can be added. Think of radicals as variable terms - it's a helpful trick when deciding what you can add and what you cannot. For example: $2\sqrt3$ $+$ $4\sqrt3$ can be compared to: $2x+4x$... you know these can be added: $6x$ Therefore: $2\sqrt3$ $+$ $4\sqrt3$ $=6\sqrt3$