1 . F=ax+bx2

• A. $a{L}^2+bL{x}^3$
• B. $a{L}^2/+2b{L}^2$
• C. $a+2bL$
• D. $\frac{a{L}^2}{2}+\frac{bL}{3}$

Answer: Option D

Explanation: