Adding and Subtracting Radicals

Front

Define a radical.

Back

A radical is a symbol that represents the root of a number, most commonly the square root.

Front

What is the square root of 25?

Back

5

Front

Simplify: √18

Back

3√2

Front

What is the sum of √5 and √20?

Back

3√5

Front

Simplify: 3√2 - 3√18

Back

-6√2

Front

What is the result of (5√7) - (11√7)?

Back

-6√7

Front

Combine like terms: 2√5 + 4√5

Back

6√5

Front

What does it mean to simplify a radical expression?

Back

To simplify a radical expression means to rewrite it in a simpler form, often by factoring out perfect squares.

Front

What is the product of √3 and √12?

Back

6√1 or 6.

Front

Define like radicals.

Back

Like radicals are radicals that have the same index and the same radicand (the number under the radical).