21 / | | -12*x dx | / 0
Integral(-12*x, (x, 0, 21))
The integral of a constant times a function is the constant times the integral of the function:
The integral of is when :
So, the result is:
Add the constant of integration:
The answer is:
/ | 2 | -12*x dx = C - 6*x | /
Use the examples entering the upper and lower limits of integration.