Radical Equations and Extraneous Roots — Unit test Answers
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21
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Which of the following is a like radical to ?
A
x (RootIndex 3 StartRoot 6 x EndRoot)
B
6 (RootIndex 3 StartRoot x squared EndRoot)
C
4 (RootIndex 3 StartRoot 6 x squared EndRoot)
D
x (RootIndex 3 StartRoot 6 EndRoot)
22
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What is the following product?
A
RootIndex 6 StartRoot 10 EndRoot
B
RootIndex 6 StartRoot 200 EndRoot
C
RootIndex 6 StartRoot 500 EndRoot
D
RootIndex 6 StartRoot 100000 EndRoot
23
What is the simplified form of the following expression?
A
Negative 5 (RootIndex 3 StartRoot 2 x EndRoot)
B
5 (RootIndex 3 StartRoot x EndRoot)
C
RootIndex 3 StartRoot 2 x EndRoot minus 6 (RootIndex 3 StartRoot x EndRoot)
D
Negative (RootIndex 3 StartRoot 2 x EndRoot) minus 6 (RootIndex 3 StartRoot x EndRoot)
24
Which graph represents ?
A
On a coordinate plane, an absolute value curve opens down and to the right in quadrant 4 and starts at y = negative 4.
B
On a coordinate plane, an absolute value curve opens down and to the right in quadrant 1 and starts at x = 4.
C
On a coordinate plane, an absolute value curve opens down and to the right in quadrants 1 and 2 and starts at x = negative 4.
D
On a coordinate plane, an absolute value curve opens down and to the right in quadrant 1 and starts at y = 4.
25
What is the following difference?
A
Negative 3 a b (RootIndex 3 StartRoot 3 a b squared EndRoot)
B
16 a b squared (RootIndex 3 StartRoot 3 a EndRoot) minus 45 a squared b squared (RootIndex 3 StartRoot 3 b EndRoot)
C
Negative 7 a b (RootIndex 3 StartRoot 3 a b squared EndRoot)
D
8 a b (RootIndex 3 StartRoot 3 a b squared EndRoot) minus 15 a b squared (RootIndex 3 StartRoot 3 a b EndRoot)
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