Answer: n²- 18n + 81
1. Differentiate using the Power Rule, [tex]\frac{d}{dy} [y^n]=ny^n^-1^[/tex]
2. Use the product rule.
[tex]=\frac{d}{dy} ((y-2^7)((n-9)^2))[/tex]
[tex]=(y-2^7)(\frac{d}{dy}((n-9))^2))+(n-9)^2(\frac{d}{dy}(y-2^7))[/tex]
3. Simplify.
= n²- 18n + 81
Hence, n² - 18n + 81 is your answer.
