Add Subtract Radicals With Variables

2√3 + 2√8 - 3√3

• -3√3+4√2

• 4√2+2√3

• -√3 +4√2

• -2√3+4√2

• can't add further

Simplify 
-11√21 - 11√21

• 0

• -22√21

• √21

• Already simplified 

• A

• B

• C

• D

• 17√2
• 9√1
• 9
• 9√2

When adding or subtracting radicals step 2 tells us to: ​ (a)   radicals with the ​ (b)   ​ (c)   and ​ (d)   ​ (e)   . Only these can be combined!

• Identify

• same

• index

• radicand

• A

• B

• C

• D

Q1. What is the value of the expression?

• A) 11√5

• B) 11√10

• C) 5√5

• D) 12√10

• A
• B
• C
• D