Square roots and cube roots

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

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.

Cube roots

PRACTICE PROBLEMS
Practice finding the cube root of a perfect cube positive integer.

Equations with square roots and cube roots

PRACTICE PROBLEMS
Practice solving equations by squaring or cubing both sides.

Finding square root of decimal

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.

Roots of decimals and fractions

PRACTICE PROBLEMS
Practice taking square and cube roots of decimals and fractions.

Finding cube roots

VIDEO 4:18 minutes
Learn how to find the cube root of -512.

Dimensions of cube from volume

VIDEO 3:35 minutes
Learn how to find the side length of a cube whose volume is 512 cubic centimeters.

More square and cube root problems

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