Question

Check whether (x+3)³=x³-8 is a quadratic eqation

Answer 1

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Answer 2

Answer:

Yes, it is a quadratic equation.

Step-by-step explanation:

Given : Equation $(x+3)^3=x^3-8$

To find : Check whether the equation is a quadratic equation ?

Solution :

Quadratic equation means the equation with variable square.

The standard form of quadratic equation is $ax^2+bx+c=0$

Now, We solve the equation

$(x+3)^3=x^3-8$

$x^3+3^3+3(x^2)(3)+3(x)(3^2)=x^3-8$

$x^3+27+9x^2+27x=x^3-8$

$x^3+27+9x^2+27x-x^3+8=0$

$9x^2+27x+35=0$

Yes it is in the form of quadratic equation.