AP Prep Geometry; Linear and Quadratic Equations
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20 Terms
1
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5x-7 = 13
x = 4
2
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4x+9 = 28
x = 4.75
3
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(2x-15)/4 = 12
x = 31.5
4
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(x/2)+7 = -3
x = -20
5
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2-5x = 82
x = -16
6
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7x+10 = 429
x = 59.9 (rounded to nearest tenth)
7
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Factor x²-11x+28
(x-4) (x-7)
8
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Factor 2x²+5x-12
(2x-3) (x+4)
9
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Factor x²-21x = -20
x=1, x=20
10
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Factor 3x²+3x=18
x=2, x=-3
11
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Factor 4x²-9 = 0
(2x+3) (2x-3)
12
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Factor 5x²-15x
5x (x-3)
13
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Solve x²-5=4
x=3, x=-3
14
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(x+3)²=9
x=0 x=-6
15
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5(x-7)²=45
x=10, x=4
16
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[7(x+1)²]/3 = 14
x=√6 - 1, x=-√6 - 1
17
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x²+12x-9=0 Solve using Quadratic Formula
x=3(√5 - 2), x=-3(2 + √5)
18
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Use Quadratic Formula 3x²-5x+8=0
x=5/6 + (√71i)/6, -5/6 + (√71i)/6
19
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Use Quadratic Formula 4x²-9x+12=0
x = 9/8 +- (√111i)/8
20
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Use Quadratic Formula 7x²+2x+4=0
x = -1/7 +- (3√3i)/7
Note 
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