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Mathematics Worksheets - Quadratic Equations (hard)

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1)2x2 + 7x + 5 = 0
2)4x2 -2x -6 = 0
3)5x2 + 18x + 13 = 0
4)2x2 -8x -10 = 0
5)4x2 + 16x + 12 = 0
6)3x2 -2x -5 = 0
7)3x2 -2x -5 = 0
8)4x2 -x -5 = 0
9)2x2 + 12x + 10 = 0
10)5x2 + 10x + 5 = 0
11)5x2 + 2x -3 = 0
12)5x2 + 15x + 10 = 0
13)2x2 + 13x + 11 = 0
14)2x2 + 16x + 14 = 0
15)2x2 + 8x + 6 = 0
16)4x2 + 10x + 6 = 0
17)4x2 + 12x + 8 = 0
18)3x2 + 14x + 11 = 0
19)5x2 + 8x + 3 = 0
20)5x2 + 16x + 11 = 0
21)4x2 + 15x + 11 = 0
22)3x2 + 18x + 15 = 0
23)4x2 + 3x -1 = 0
24)3x2 -11x -14 = 0
25)2x2 + 6x + 4 = 0
26)2x2 -13x -15 = 0
27)3x2 + 2x -1 = 0
28)4x2 -7x -11 = 0
29)4x2 -5x -9 = 0
30)3x2 + 15x + 12 = 0
31)3x2 + 13x + 10 = 0
32)4x2 -3x -7 = 0
33)3x2 -9x -12 = 0
34)3x2 -3x -6 = 0
35)2x2 + 16x + 14 = 0
36)3x2 -23x = 0
37)4x2 -11x -15 = 0
38)4x2 -11x -15 = 0
39)5x2 -9x -14 = 0
40)2x2 + 10x + 8 = 0
41)3x2 + 14x + 11 = 0
42)5x2 + 10x + 5 = 0
43)3x2 + 2x -1 = 0
44)5x2 + 9x + 4 = 0
45)2x2 + 10x + 8 = 0
46)4x2 -2x -6 = 0
47)2x2 -4x -6 = 0
48)4x2 -9x -13 = 0
49)3x2 -3x -6 = 0
50)3x2 -x -4 = 0

Joke:
What is the best excuse for not doing your maths homework? - Pythagoras' birthday!