Quadratic Equations By Completing the Square
Kuta Software - Infinite Algebra 2
Name___________________________________
Solving Quadratic Equations By Completing the SquareDate________________
Period____
Solve each equation by completing the square.
1) p 2 + 14 p ? 38 = 0
2) v 2 + 6v ? 59 = 0
3) a 2 + 14a ? 51 = 0
4) x 2 ? 12 x + 11 = 0
5) x 2 + 6 x + 8 = 0
6) n 2 ? 2n ? 3 = 0
7) x 2 + 14 x ? 15 = 0
8) k 2 ? 12k + 23 = 0
9) r 2 ? 4r ? 91 = 7
10) x 2 ? 10 x + 26 = 8
11) k 2 ? 4k + 1 = ?5
12) b 2 + 2b = ?20
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-1-
Worksheet by Kuta Software LLC
13) v 2 ? 6v = ?91
14) n 2 = 18n + 40
15) 5k 2 = 60 ? 20k
16) 6 x 2 ? 48 = ?12 x
17) 8 x 2 + 16 x = 42
18) 9n 2 + 79 = ?18n
19) 2a 2 = ?6 + 8a
20) 2 x 2 ? 5 x + 67 = 0
21) 4n 2 + 4n + 36 = 0
22) 7k 2 ? 16k + 100 = 0
23) 10 p 2 + 4 p + 77 = 9
24) 3 x 2 = ?4 + 8 x
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-2-
Worksheet by Kuta Software LLC
Kuta Software - Infinite Algebra 2
Name___________________________________
Solving Quadratic Equations By Completing the SquareDate________________
Period____
Solve each equation by completing the square.
1) p 2 + 14 p ? 38 = 0
{?7 +
2) v 2 + 6v ? 59 = 0
87 }
87, ?7 ?
3) a 2 + 14a ? 51 = 0
{?3 + 2
17, ?3 ? 2 17 }
4) x 2 ? 12 x + 11 = 0
{3, ?17}
{11, 1}
5) x 2 + 6 x + 8 = 0
6) n 2 ? 2n ? 3 = 0
{?2, ?4}
{3, ?1}
7) x 2 + 14 x ? 15 = 0
8) k 2 ? 12k + 23 = 0
{6 +
{1, ?15}
9) r 2 ? 4r ? 91 = 7
{2 +
102, 2 ?
10) x 2 ? 10 x + 26 = 8
102 }
11) k 2 ? 4k + 1 = ?5
{2 + i
13 }
13, 6 ?
{5 +
7}
12) b 2 + 2b = ?20
2, 2 ? i 2 }
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7, 5 ?
{?1 + i
-1-
19, ?1 ? i 19 }
Worksheet by Kuta Software LLC
13) v 2 ? 6v = ?91
{3 + i
14) n 2 = 18n + 40
82, 3 ? i 82 }
{20, ?2}
15) 5k 2 = 60 ? 20k
16) 6 x 2 ? 48 = ?12 x
{2, ?6}
{2, ?4}
17) 8 x 2 + 16 x = 42
18) 9n 2 + 79 = ?18n
{
{ }
3 7
,?
2 2
19) 2a 2 = ?6 + 8a
{
21) 4n 2 + 4n + 36 = 0
?1 + i 35 ?1 ? i 35
,
2
2
?1 + 13i ?1 ? 13i
,
5
5
5 + i 511 5 ? i 511
,
4
4
}
22) 7k 2 ? 16k + 100 = 0
}
23) 10 p 2 + 4 p + 77 = 9
{
}
20) 2 x 2 ? 5 x + 67 = 0
{3, 1}
{
?3 + i 70 ?3 ? i 70
,
3
3
{
8 + 2i 159 8 ? 2i 159
,
7
7
}
24) 3 x 2 = ?4 + 8 x
}
{ }
2,
2
3
Create your own worksheets like this one with Infinite Algebra 2. Free trial available at
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-2-
Worksheet by Kuta Software LLC
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