Adding, Subtracting, Multiplying Radical Expressions

Front

6√3 - 10√3 = ?

Back

-4√3

Front

√18 - √12 = ?

Back

3√2 - 2√3

Front

To multiply radical expressions, the radicals must have the same...

Back

index

Front

√45 - √20 = ?

Back

√5

Front

2√18⋅5√3 = ?

Back

30√6

Front

What is a radical expression?

Back

An expression that includes a root, such as a square root or cube root.

Front

How do you simplify √a * √b?

Back

√(a*b) if a and b are non-negative.

Front

What is the index of a radical?

Back

The index indicates the degree of the root, e.g., square root has an index of 2.

Front

What is the radicand in a radical expression?

Back

The number or expression inside the radical symbol.

Front

How do you add radical expressions?

Back

Combine like terms; only radicals with the same index and radicand can be added.