Adding, Subtracting, Multiplying Radical Expressions

Front

√12⋅√20

Back

4√15

Front

2√5 + 4√5 =

Back

6√5

Front

To add or subtract radical expressions, the radicals must have the same...

Back

index and radicand

Front

√18 - √12

Back

3√2 - 2√3

Front

6√3 - 10√3 =

Back

-4√3

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., 2 for square roots.

Front

What is the radicand in a radical expression?

Back

The number or expression inside the radical symbol.

Front

How do you combine like radical terms?

Back

Add or subtract the coefficients of the radicals with the same index and radicand.