AnswersLJISD-TX-Algebra II-5th 6WKSRadical Equations and Extraneous Roots

Radical Equations and Extraneous Roots Answers

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1
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What is the solution of ?

Question illustration
A
x = 6
B
x = 72
C
x = 126
D
no solution
2
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What is the solution of ?

Question illustration
A
x = –72
B
x = –66
C
x = 58
D
no solution
3

Which of the following is an extraneous solution of ?

Question illustration
A
x = –12
B
x = –3
C
x = 3
D
x = 12
4

Which equation is related to ?

Question illustration
A
x + 10 = x2 + x + 1
B
x + 10 = x2 + 2x + 1
C
x + 10 = x2 + 1
D
x + 10 = x2 – 1
5

What is the solution of ?

Question illustration
A
x = 2
B
x = 3
C
x = 2 or x = 3
D
no solution
6

Determine the solution for the following equation:

Question illustration
A
x = 3
B
x = 5
C
x = 13
D
x = 65
7

What is the solution of ?

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

Which equation is equivalent to ?

Question illustration
A
x + 9 = x + 10
B
x + 9 = x2 + 20x + 100
C
x2 + 81 = x2 + 100
D
x2 + 81 = x2 + 20x + 100
9

Which equation is equivalent to ?

Question illustration
A
x + 11 = 225
B
x + 121 = 225
C
StartRoot x EndRoot = 15 + 11
Option C
D
StartRoot x EndRoot = 15 minus 11
Option D
10

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

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