Mathematics · Quadratic Equations

Which of the following equations reduces to a quadratic equation?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1(x2 + 1)2 - x4 = 2x + 1✓
2x2 - 2x = (-2)(3 - x) + x2
3(x + 1)2 = 2(x + 3) - x2 + 5
4x3 + 3x2 + 1 = (x + 2)3

Correct answer

(x2 + 1)2 - x4 = 2x + 1

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