Radical Equations and Extraneous Roots — Unit test Answers
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1
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What is the solution of ?
A
x = 6B
x = 72C
x = 126D
no solution2
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Which of the following is a radical equation?
A
x StartRoot 3 EndRoot = 13
B
x + StartRoot 3 EndRoot = 13
C
StartRoot x EndRoot + 3 = 13
D
x + 3 = StartRoot 13 EndRoot
3
Which of the following is an extraneous solution of ?
A
x = –12B
x = –3C
x = 3D
x = 124
Determine the solution for the following equation:
A
x = 3B
x = 5C
x = 13D
x = 655
Which of the following is a radical equation?
A
x + StartRoot 5 EndRoot = 12
B
x squared = 16
C
3 + x StartRoot 7 EndRoot = 13
D
7 StartRoot x EndRoot = 14
6
Which of the following is an extraneous solution of ?
A
x = –8B
x = –2C
x = 2D
x = 87
What is the solution of ?
A
x = –8 or x = –1B
x = –8C
x = –1D
no solution8
What is the solution of ?
A
x = –72B
x = –66C
x = 58D
no solution9
Which equation is equivalent to ?
A
x + 11 = 225B
x + 121 = 225C
StartRoot x EndRoot = 15 + 11
D
StartRoot x EndRoot = 15 minus 11
10
What is the solution of ?
A
x = twelve-fifths
B
x = negative twelve-fifths
C
x = –6 or x = –3D
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