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Quadratic equations

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80. w2__225 = -15 and +15

86. 3v2 + 4v -1 = 0

96. = x + 3
7x + 29 = (x + 3)² = x² + 6x + 9.
x² - x - 20 = 0. - 20 = - 5?4,
(x- 5)(x + 4) = 0 x = 5 and - 4
.

10 . x2 +4x +3=0

14. -8q2 - 2q + 1 = 0

30. -3x2 - 2x - 5 =0

42. 9m2 + 16 = 24m

48. -3x2 + 7x = 0

64. x2 + x + -2 = 0

70. b4 + 13b2 +36 = 0.

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Solution Summary

This provides examples of solving quadratic equations, including imaginary solutions.

Solution provided by:
Thokchom Sarojkumar Sinha, MSc
Education
  • BSc, Manipur University
  • MSc, Kanpur University
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