17. 2x2+ 71 = -163
19. -4x2 - 3 = 481
Directions: The roots of a quadratic equation...
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Mathematics, 07.12.2020 06:30, xojade
17. 2x2+ 71 = -163
19. -4x2 - 3 = 481
Directions: The roots of a quadratic equation
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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