Are you sure the limits were not switched or the value was not subtracted? There are various ways to add things up.
Could some one help me with this question, it been bugging me:
Calculate the area of the region bounded between the graph of y = x(x + 3)(x - 5) and the x-axis from x = -3 to x = 5 (Answer was 863/6).
I dont get it cause they just computed it as a normal definite integral (without using any absolute signs, for the negative portion). This is asking for area, so shouldnt it be the area above the y-axis + the absolute value of the area below the y-axis?