Mathematics · Quadratic Equations
Which of the following represents a quadratic equation?
- 1(x + 3)(x - 4) = x 2 + 2x + 12
- 2(3x + 4)x = 3x 2 + 16
- 3(x + 2)(x + 2)(x - 1) = x 3 + 5x 2 + 6x + 4✓
- 4(x - 7)(x + 2) = (x - 2)(x)
Correct answer
(x + 2)(x + 2)(x - 1) = x 3 + 5x 2 + 6x + 4
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