Operations with Radical Expressions

What is the result of multiplying the square root of 2 and the square root of 8?

• 16

• 8

• 4

• 2

Which of the following is an alternate way to multiply radicals?

• Subtract the radicands first

• Divide the radicands first

• Simplify the radicands first

• Add the radicands first

When multiplying variables under a cube root, what do you do with their exponents?

• Add them

• Multiply them

• Divide them

• Subtract them

What is the cube root of 27?

• 4

• 3

• 5

• 2

Tags

CCSS.8.EE.A.2

Why is it important to divide radicals?

• To simplify the numerator

• To change the index of the radical

• To avoid having a radical in the denominator

• To make the fraction larger

Tags

CCSS.HSN.RN.A.2

What is the cube root of negative 8?

• 2

• -2

• 4

• -4

Tags

CCSS.8.EE.A.2

What is the rule for adding radicals?

• They must be simplified first

• They must have the same index

• They must have the same radicand

• They must have the same coefficient

If you have 5√2 + √2, what is the result?

• 6√2

• 8√2

• 7√2

• 5√2

What is the simplified form of √18?

• 2√2

• 3√2

• 4√2

• 5√2

What is the final result when combining 18√2 and -18√2?

• 0

• 18√2

• -18√2

• 8√2