Unit 3 Lesson 9: Solving Cube and Square Roots

Front

What is the square root of a number?

Back

Front

Can the square root of a negative number be a real number?

Back

No, the square root of a negative number is not a real number. It is an imaginary number.

Front

What is the cube root of a number?

Back

Front

Back

There is NO SOLUTION because the square root of a number cannot be negative.

Front

Back

Front

Back

Front

What is the principal square root?

Back

Front

Back

Front

Back

Front

What happens when you square both sides of an equation?

Back

Squaring both sides can introduce extraneous solutions, so always check your solutions.