Answer:
6x⁴ + 6x³ + 2x² + 4
General Formulas and Concepts:
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
(6x³ - x⁴ + 7) + (7x⁴ - 3 + 2x²)
<u>Step 2: Simplify</u>
Answer: C
Step-by-step explanation: In bracket we subtract 8,5% which is 0.085 from whole amount which is 1. Then the obtained result, we raised to the power of x - wich respresent numbers of years