Final answer:
A polynomial expression consists of terms that are added or subtracted. This expression has four terms.
Step-by-step explanation:
The given expression is:
9x⁵-3x³+7x-51
This is a polynomial expression. A polynomial is an algebraic expression that consists of terms added or subtracted to each other. Each term has a coefficient and an exponent. The terms are separated by addition or subtraction symbols.
In this expression, we have four terms:
Term 1: 9x⁵
Term 2: -3x³
Term 3: 7x
Term 4: -51
So the expression can be named as a polynomial with four terms.