The given expression 5x+3x²-7x³+2 is a cubic expression.
A cubic expression is a three-dimensional algebraic equation of the form ax³ + bx² + cx + d = 0, where the coefficients are a, b, and c, and the constant is d.
In order to classify the given expression as 5x+3x²-7x³+2, we need to rearrange the given expression,
[tex]5x+3x^2-7x^3+2\\\\=-7x^3+3x^2+5x+2[/tex]
Since the highest power that is in the expression is 3, therefore, the given expression is a cubic expression.
Learn more about Expression:
https://brainly.com/question/13947055
