AnswersFL-1200700-Mathematics for College Algebra MISRadical Equations and Extraneous Roots

Radical Equations and Extraneous Roots Answers

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1
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Which of the following is a radical equation?

A
x StartRoot 3 EndRoot = 13
Option A
B
x + StartRoot 3 EndRoot = 13
Option B
C
StartRoot x EndRoot + 3 = 13
Option C
D
x + 3 = StartRoot 13 EndRoot
Option D
2
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Determine the solution for the following equation:

Question illustration
A
x = 3
B
x = 5
C
x = 13
D
x = 65
3

Which of the following is an extraneous solution of ?

Question illustration
A
x = –6
B
x = –1
C
x = 1
D
x = 6
4

Which equation can be rewritten as x + 4 = x2? Assume

Question illustration
A
StartRoot x EndRoot + 2 = x
Option A
B
StartRoot x + 2 EndRoot = x
Option B
C
StartRoot x + 4 EndRoot = x
Option C
D
StartRoot x squared + 16 EndRoot = x
Option D
5

What is the solution of ?

Question illustration
A
x = –8 or x = –1
B
x = –8
C
x = –1
D
no solution
6

Which of the following is a radical equation?

A
x + StartRoot 5 EndRoot = 12
Option A
B
x squared = 16
Option B
C
3 + x StartRoot 7 EndRoot = 13
Option C
D
7 StartRoot x EndRoot = 14
Option D
7

Which of the following is an extraneous solution of ?

Question illustration
A
x = –8
B
x = –2
C
x = 2
D
x = 8
8

What is the solution of ?

Question illustration
A
x = –72
B
x = –66
C
x = 58
D
no solution
9

What is the solution of ?

Question illustration
A
x = 2
B
x = 3
C
x = 2 or x = 3
D
no solution
10

Which of the following is an extraneous solution of ?

Question illustration
A
x = –12
B
x = –3
C
x = 3
D
x = 12
11

What is the solution of ?

Question illustration
A
x = 6
B
x = 72
C
x = 126
D
no solution

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