simplify the expression. if not possible, write simplified. 7x + 3x^2

simplify the expression. if not possible, write simplified. 7x + 3x^2
Answer
Explanation:
Step1: Check for like - terms
The terms $7x$ and $3x^{2}$ are not like - terms. Like - terms have the same variable(s) raised to the same power(s). Here, one term has $x$ to the first power and the other has $x$ to the second power.
Answer:
$7x + 3x^{2}$ (simplified)