How to add and subtract three radicals, square root

The video tutorial explains how to handle operations with radicals, focusing on multiplication, division, addition, and subtraction. It emphasizes the importance of having the same index and radicand for combining radicals. The tutorial provides examples to illustrate these concepts and guides students through simplifying and combining like radicals.

What is the key requirement for multiplying or dividing radicals?

• The radicals must be simplified.

• The coefficients must be equal.

• The indices must be the same.

• The radicands must be different.

When can you add or subtract radicals?

• When the indices are different.

• When the radicands are different.

• When the coefficients are equal.

• When the indices and radicands are the same.

What is the first step in solving problems involving addition and subtraction of radicals?

• Simplify the radicals.

• Multiply the coefficients.

• Change the indices.

• Divide the radicands.

If you have 2√7 + 12√7 - 2√7, what is the result?

• 14√7

• 10√7

• 12√7

• 16√7

What should you do if you find radicals confusing?

• Convert them to variables.

• Change the radicands.

• Ignore the indices.

• Add the coefficients directly.