Adding and Subtracting Radicals

Question 1

What is the radical part of both [image 1] and [image 2] when the expressions are simplified?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-09-05-20-02-task/mc002-3.jpg

Question 2

Which expression equals ?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-09-05-20-03-task/mc001-3.jpg

Question 3

Find the difference:

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Answer image: //media.edgenuity.com/EVresources/3111-09-05-20-04-task/mc001-3.jpg

Question 4

Simplify the following expression completely, where x [image 1] 0. [image 2]

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-09-05-20-05-task/mc001-4.jpg

Question 5

Use the for d =

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-09-05-20-06-task/mc001-3.jpg

Question 6

a = [___], b = [___]

Revolt · Accepted Answer

⇒ 2: 6; 2, 6

Question 7

Question 8

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Answer image: //media.edgenuity.com/EVresources/3111-09-05-20-07-task/mc001-3.jpg

Question 8

What is the student’s error?

Revolt · Accepted Answer

The student incorrectly simplified .

Question 9

Given that is it ever possible to have Explain.

Revolt · Accepted Answer

Yes. It is possible when either a or b equals zero. Since √0 = 0, adding zero to a radical or to its radicand does not change the value.

Question 10

a = [___], b = [___]

Revolt · Accepted Answer

10, 6; 8, 6; 2, 6

Adding and Subtracting Radicals Answers