Answer: x4 + 4x3 + 10x2 is the correct option
Explanation:
The standard form a a polynomial depends is written with respect to the highest power to which the variable or unknown of that polynomial is raised. The term which is raised to the highest power always begin the polynomial. This is followed by the other terms whose variables or unknowns has lower are raised to lower powers and it is in a descending order.
Looking at the polynomials given, the only one written in standard form is
x4 + 4x3 + 10x2
The powers of x are arranged in a descending order.