Understanding Radicals: Addition and Subtraction

The video tutorial by Math Girl on MathGirl.org covers the basics of adding and subtracting radicals. It begins with a review of adding and subtracting variables, emphasizing the importance of having the same variables or radicals to combine them. The tutorial provides several examples to illustrate these concepts, including simplifying radicals before performing operations. Math Girl uses a fun and engaging approach to explain these mathematical principles, ensuring that viewers understand the process of combining like terms and radicals.

What is the result of adding 2X and 3X?

• 2X

• 5X

• 3X

• 6X

If you have 2 radical X and 3 radical X, what is the sum?

• 3 radical X

• 2 radical X

• 6 radical X

• 5 radical X

Why can't you add 2 radical X and 3 radical M?

• Because the radicals are different

• Because the coefficients are different

• Because they are already simplified

• Because they are not numbers

What is 5 radical 3 plus 2 radical 3?

• 2 radical 3

• 7 radical 3

• 10 radical 3

• 5 radical 3

What is the result of 8 radical 6 minus 5 radical 6?

• 8 radical 6

• 5 radical 6

• 13 radical 6

• 3 radical 6

How do you simplify radical 12?

• 2 radical 3

• 4 radical 3

• 3 radical 4

• 6 radical 2

What is the simplified form of radical 8?

• 8 radical 2

• 4 radical 2

• 3 radical 2

• 2 radical 2

What is the result of adding 5 radical 3 and 6 radical 3?

• 6 radical 3

• 10 radical 3

• 11 radical 3

• 5 radical 3

What is the result of 3 radical 7 minus 9 radical 7?

• Negative 6 radical 7

• 6 radical 7

• 12 radical 7

• 3 radical 7

What is the final result of combining 6 radical 3, minus 6 radical 2, plus 18 radical 3?

• 24 radical 3 minus 6 radical 2

• 18 radical 3 minus 6 radical 2

• 6 radical 3 minus 6 radical 2

• 12 radical 3 minus 6 radical 2