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1. Which of the following is a quadratic equation? (a) x² + 2x + 1 = (4-x)² + 3 (b) - 2x² = (5-x) (2x-2/5) (c) (k + 1)x² + 3/2x = 7, where k = - 1 (d) x³- x² = (x-1)³​

1. Which of the following is a quadratic equation? (a) x² + 2x + 1 = (4-x)² + 3 (b) - 2x² = (5-x) (2x-2/5) (c) (k + 1)x² + 3/2x = 7, where k = - 1 (d) x³- x² = (x-1)³​
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1. Which of the following is a quadratic equation?

(a) x² + 2x + 1 = (4-x)² + 3
(b) - 2x² = (5-x) (2x-2/5)
(c) (k + 1)x² + 3/2x = 7, where k = - 1
(d) x³- x² = (x-1)³​

asked
User Nidonocu
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8.5k points

1 Answer

4 votes

x³-x² = (x-1)³ is a quadratic equation.

answered
User Lao Tzu
by
7.8k points
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