Combining Like Radical Terms
Adding and subtracting radical expressions is like adding and subtracting
polynomials.
â€¢ With polynomials, to add
like terms, we add their
coefficients. 
5x + 7x = (5 + 7)x = 12x 
â€¢ With radical expressions, to
add like radical terms, we
add the numbers in front of
the radicals. 

Example 1
Note:
We can also write the result as:
