50 -- x
50/x
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the power rule: 1x\frac{1}{x}x1 goes to −1x2- \frac{1}{x^{2}}−x21
So, the result is: −50x2- \frac{50}{x^{2}}−x250
The answer is:
-50 ---- 2 x
100 --- 3 x
-300 ----- 4 x