Algebra II : Multiplying and Dividing Radicals

Study concepts, example questions & explanations for Algebra II

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Example Questions

Example Question #144 : Simplifying Radicals

Possible Answers:

Correct answer:

Explanation:

When multiplying radicals, we can just multiply the values inside the radicand.

 This can be simplified to  which is the cubic root of the answer.

Example Question #4136 : Algebra Ii

Possible Answers:

Correct answer:

Explanation:

We can simplify  by finding a perfect square.

 Next we can reduce to .

When dealing with radicals in the denominator, we simplify it by multiplying top and bottom by the radical.

Example Question #43 : Multiplying And Dividing Radicals

Possible Answers:

Correct answer:

Explanation:

The first step I'd recommend is to multiply everything and put it all underneath one radical: . Then, recall that for every two of the same term, cross them out underneath the radical and put one of them outside. Attack each term separately: , , and . Put those all together to get: .

Example Question #241 : Radicals

Possible Answers:

Correct answer:

Explanation:

Combine radicals:

Simplify the radical leftover:

Example Question #4141 : Algebra Ii

Divide and simplify:

Possible Answers:

None of these

Correct answer:

Explanation:

Divide outside number:

Divide radicals:

Simplify radical:

Example Question #4142 : Algebra Ii

Expand, then simplify:  

Possible Answers:

Correct answer:

Explanation:

Foil:

Example Question #4141 : Algebra Ii

Simplify:

Possible Answers:

Correct answer:

Explanation:

 Multiply the numbers inside the radical.

 Factor out a perfect square of .

Example Question #4142 : Algebra Ii

Simplify:

Possible Answers:

Correct answer:

Explanation:

 Multiply the numbers inside the radical.

 Factor out a perfect square of .

Example Question #41 : Multiplying And Dividing Radicals

Simplify:

Possible Answers:

Correct answer:

Explanation:

 Divide the numbers inside the radicals.

Example Question #42 : Multiplying And Dividing Radicals

Simplify: 

Possible Answers:

Correct answer:

Explanation:

When multiplying radicals, simply multiply the numbers inside the radical with each other. Therefore:

 

We cannot further simplify because both of the numbers multiplied with each other were prime numbers.

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