Add and subtract radical expressions

Front

What is the result of √5 + √20?

Back

3√5

Front

How do you simplify -11√21 - 11√21?

Back

-22√21

Front

What is the simplified form of 5√7 - 3√5 + 4√7?

Back

9√7 - 3√5

Front

What is the term for the number under the radical sign?

Back

radicand

Front

What is the first step in adding radical expressions?

Back

Combine like terms by ensuring the radicals have the same index and radicand.

Front

How do you subtract radical expressions with different radicands?

Back

You cannot combine them; leave them as separate terms.

Front

What is the simplified form of √a + √a?

Back

2√a

Front

What is the product of √a and √b?

Back

√(a*b) or √ab

Front

How do you simplify √(a^2)?

Back

a, assuming a is non-negative.

Front

What is the result of √(x^2) + √(x^2)?

Back

2x, assuming x is non-negative.