Question

Which of the following is a quadratic equation? *

1 point

a) x² + 2x + 1 = (4 – x)² + 3

b) -2x² = (5-x)(2x – 2/5)

c) (k + 1)x² + (3/2)x = 7, k= -1

d) x³ – x² = (x – 1)³

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Answer 1

Answer:

1,2,3, are quadratic equation ...as their degree is 2...

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Answer 2

Answer:

1,2 and 3 are quadric equation as it's degree is 2.............