Completing The Square Answers
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1
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What are the solutions of ?
A
or
B
or
C
or
D
or
2
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Solve for in the equation .
A
x = negative 7 plus-or-minus 4 StartRoot 6 EndRoot i
B
x = –7 ± 8iC
x = 7 plus-or-minus 4 StartRoot 6 EndRoot i
D
x = 7 ± 8i4
Which value must be added to the expression x2 + x to make it a perfect-square trinomial?
A
One-fourth
B
One-half
C
1D
45
Solve for in the equation .
A
x = negative 1 plus-or-minus StartRoot 15 EndRoot
B
x = negative 1 plus-or-minus StartRoot 17 EndRoot
C
x = negative 2 plus-or-minus 2 StartRoot 5 EndRoot
D
x = negative 1 plus-or-minus StartRoot 13 EndRoot
6
Solve for in the equation .
A
x = negative 6 plus-or-minus StartRoot 82 EndRoot
B
x = negative 6 plus-or-minus 2 StartRoot 17 EndRoot
C
x = 1 plus-or-minus StartRoot 33 EndRoot
D
x = 1 plus-or-minus StartRoot 47 EndRoot
7
Solve for in the equation .
A
x = negative 7 plus-or-minus 4 StartRoot 6 EndRoot iB
x = –7 ± 8iC
x = 7 plus-or-minus 4 StartRoot 6 EndRoot iD
x = 7 ± 8i8
Solve for in the equation .
A
x = 2 plus-or-minus StartRoot 42 EndRoot
B
x = 2 plus-or-minus StartRoot 33 EndRoot
C
x = 2 plus-or-minus StartRoot 34 EndRoot
D
x = 4 plus-or-minus StartRoot 42 EndRoot
9
Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?
A
6B
36C
72D
14410
Use completing the square to solve for in the equation .
A
x = –4 or 6B
x = –2 or 14C
x = 1 plus-or-minus StartRoot 89 EndRoot
D
x = 1 plus-or-minus StartRoot 87 EndRoot
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