3 - x
d /3\ --|-| dx\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: −3x2- \frac{3}{x^{2}}−x23
The answer is:
-3 --- 2 x
6 -- 3 x
-18 ---- 4 x