Question

Which of the following is not a quadratic equation?

2(x − 1)² = 4x² − 2x + 1

2x − x² = x² + 5

(√2x + √3)² = 3x² − 5x

(x² + 2x)² = x³ + 3 + 4x²

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Answer 1

Answer:

D) is not a quadratic equations

explanation

quadratic equations are in form

$x ^{2} + bx - c$

but ,

$(x ^{2} + 2x) ^{2} = x ^{3} + 3 + 4x ^{2}$

is not form of quadratic equations

Answer 2

Answer:

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