Adding, Subtracting, Multiplying Radical Expressions

Front

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

Back

index and radicand

Front

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

Back

index

Front

6√3 - 10√3 = ?

Back

-4√3

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

What is the index of a radical?

Back

The index indicates the degree of the root; for example, in √x, the index is 2.

Front

What is a radicand?

Back

The number or expression inside a radical symbol.

Front

How do you simplify √a - √b?

Back

Combine like terms if a and b are perfect squares or can be simplified.

Front

What is the product of √a and √b?

Back

√(a*b) - the product of two radicals is the square root of the product of the radicands.