Check wheather the equation (x+2)³=2x(x²-1) is quadratic equation

1.	Check wheather the equation (x+2)³=2x(x²-1) is quadratic equation
Answer» We have (x + 2)3 = 2x (x2 - 1){tex}\\implies{/tex}x3 + 6x2 + 12x + 8 = 2x3 - 2x{tex}\\implies{/tex}x3 - 6x2 - 14x - 8 = 0it is not of the form ax2 + bx + c = 0, {tex}a \\ne 0{/tex}{tex}\\therefore{/tex} the given equation is not a quadratic equation.

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