Adding or Subtracting Radicals

Simplify 
-2√2-3√8-√5

•  -8√2-√5

• -8√2-√9

• -14√3-√7

• -2√4-√3

Simplify
 
2√27+3√3

• 15√30

• 5√3

• 9√3

• 9√8

TRUE or FALSE.

Similar radicals can be added or subtracted.

• TRUE

• FALSE

The first step in adding or subtracting similar radicals is to combine like terms. 

• TRUE

• FALSE

Dissimilar radicals cannot be added or subtracted. 

• TRUE

• FALSE

TRUE or FALSE

Factoring is also used in adding or subtracting dissimilar radicals. 

• TRUE

• FALSE

TRUE OR FALSE

To add or subtract radical expression having fractional radicand you need to rationalize the denominator before simplifying.

• TRUE

• FALSE

You cannot add or subtract radical expression if they have different indices and the same radicand. 

• TRUE

• FALSE

The last step in adding or subtracting radical expression is to reduce the answer in its simplest form.

• TRUE

• FALSE

• -5√1
• 8√2 + 13√3
• 21√5
• 20√5