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Check whether the following is the quadratic equations: (x + 2)^3 = 2x(x^2 - 1) - Mathematics

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Check whether the following is the quadratic equations: (x + 2)3 = 2x(x2 - 1)

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Solution

(x + 2)3 = 2x(x2 - 1)

⇒ x3 + 8 + x2 + 12x = 2x3 - 2x

⇒ x3 + 14x - 6x2 - 8 = 0

It is not of the form ax2 + bx + c = 0.

Hence, the given equation is not a quadratic equation.

Concept: Quadratic Equations
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APPEARS IN

NCERT Class 10 Maths
Chapter 4 Quadratic Equations
Exercise 4.1 | Q 1.7 | Page 73
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