# Square roots and cube roots

1 article

5 videos

5 skills

A strong contender for coolest symbol in mathematics is the radical. What is it? How does it relate to exponents? How is the square root different than the cube root? Learn all about square roots and cube roots in this tutorial.

### Introduction to square roots

VIDEO
5:24 minutes

Learn about the square root symbol (the principal root) and what it means to find a square root. Also learn how to solve simple square root equations.

### Square roots of perfect squares

ARTICLE

Learn how to find the square root of perfect squares like 25, 36, and 81.

### Square roots of perfect squares

PRACTICE PROBLEMS

Practice finding the square root of a perfect square positive integer.

### Introduction to cube roots

VIDEO
8:01 minutes

Learn the meaning of cube roots and how to find them. Also learn how to find the cube root of a negative number.

### Equations with square roots and cube roots

PRACTICE PROBLEMS

Practice solving equations by squaring or cubing both sides.

### Roots of decimals and fractions

PRACTICE PROBLEMS

Practice taking square roots of decimals and fractions.

### Cube root of a negative number (example)

VIDEO
4:18 minutes

Learn how to find the cube root of -512.

### Square root of decimal (example)

VIDEO
3:04 minutes

Learn how to find the square root of a decimal number. The problem solved in this video is p^2 = 0.81.

### More square and cube root problems

PRACTICE PROBLEMS

Practice solving problems using your knowledge of square and cube roots.

### Dimensions of a cube from its volume

VIDEO
3:35 minutes

Learn how to find the side length of a cube whose volume is 512 cubic centimeters.