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# Solve By Completing the Square

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1
x2 + 5x + 6 = 0
x = -3, -2
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2
x2 + 2x + 1 = 0
x = -1
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3
x2 + 3x + -10 = 0
x = -5, 2
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4
m2 + -4m + -21 = 0
m = -3, 7
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5
3k2 + 18k + 15 = 0
k = -5, -1
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6
2n2 + -22n + 60 = 0
n = 5, 6
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7
4y2 + 8y + -21 = 0
y = -3.5, 1.5
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8
8y2 + 10y + -3 = 0
y = -1.5, 0.25
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9
50k2 + -20k + -6 = 0
k = -0.2, 0.6
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10
100x2 + -100x + 9 = 0
x = 0.1, 0.9
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11
10t2 = t + 2
t = -0.4, 0.5
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12
18m2 + 6m + 6 = 6m2 + 30m + -3
m = 0.5, 1.5
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13
p2 + -0.75p + 0.125 = 0
p = 0.25, 0.5
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14
2x2 = x2 + 1.75 + -3x
x = -3.5, 0.5
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15
x2 = 0.6x + -0.08
x = 0.2, 0.4
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16
3y2 + -2.55y + -1.0 = 0.5
y = -0.4, 1.25
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17
j2 + -3.5j + 1.5 = 0
j = 0.5, 3
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18
c2 + 3.75c + -1 = 0