A= (-1,0) B =(5,0)
for b:
{x^3/3 - 2x^2 -5x} between 5 and -1
i subbed in 5 and subtracted the value i got from subbing in -1 but i got -36
(125/3 - 50 -25) - (-1/3 -2 +5)
what went wrong??
If you want a positive area Start with the value of -1 and subtract the value of 5 =36 (or just take the absolute value of your result)
Note: Areas UNDER the x- axis are generally given a negative sign (so you got it correct)