To practice examples of quadratic equation and be more confident.
Answers are below the last question
A] Find the roots by factorization:
1] 2x2 – 7x + 6 =0
2] x2 + 5x – 6 = 0
3] x2 + 4x – 5 = 0
4] 2m2 – 5m = 0
5] x2 – 4 x – 5 =0
6] 2m2 – 5 m = 0
7] a2 – 25 =0
8] m2 – 14 m + 13 = 0
9] 3x2 – x – 10 = 0
10] 3y2 = 15 y
11] x2 = 3
12] \[6\sqrt{3}x^{2} + 7x =\sqrt{3}\]
13] x2 – 15 x + 54 = 0
14] x2 + x – 20 = 0
15] 2y2 + 27 y + 13 = 0
16] 5m2 = 22 m + 15
17] \[2x^2-2x+\frac{1}{2}=0\]
18] \[6x-\frac{2}{x} =1\]
19] \[ \sqrt{2}x^{2} + 7x +5 \sqrt{2} = 0\]
20] \[ 3x^{2} – 2 \sqrt{6}x +2 = 0 \]
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