ITCA Pop-Flashcard (Radical Expressions)

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the square of an integer. For example, 16 is a perfect square because it can be written as 4².

Front

What is a perfect cube?

Back

A perfect cube is a number that can be expressed as the cube of an integer. For example, 27 is a perfect cube because it can be written as 3³.

Front

Which number is both a perfect square and a perfect cube?

Back

64 is both a perfect square (8²) and a perfect cube (4³).

Front

What are like radicals?

Back

Like radicals are radical expressions that have the same degree (index) and the same radicand.

Front

What is the degree of a radical expression?

Back

The degree (or index) of a radical expression indicates the root being taken. For example, in √x, the degree is 2.

Front

What is a radicand?

Back

A radicand is the number or expression inside a radical symbol. For example, in √16, 16 is the radicand.

Front

What is the value of anything raised to the power of zero?

Back

Anything raised to the power of zero is always 1.

Front

What are the two square roots of the number 16?

Back

The two square roots of 16 are 4 and -4.

Front

Are irrational numbers real numbers?

Back

Yes, irrational numbers are always real numbers.

Front

What is an example of an irrational number?

Back

An example of an irrational number is √2, which cannot be expressed as a fraction.