Yep!!!!
quadratic form is:
[tex] {ax}^{n} + bx + c[/tex]
answer: the equation is not quadratic in form. the variable part of the first term is not the square of the variable part of the second term. the result of squaring x cubed is x to the 6th power, not the 9th power. x^9 =/ (x^3)^2