integral of (x^3+2)/x^2
Let's compute the integral: ∫x3 + 2x2dx
For x ≠ 0, divide each numerator term by the power in the denominator: x3 + 2x2 = x + 2x2
ⅰ ∫x3 + 2x2dx = ∫xdx + ∫2x2dx
∫xdx + ∫2x2dx
ⓘ An antiderivative of x^n is x^(n+1)/(n+1), for n ≠ -1: ∫xdx = x22■A constant factor stays in front of the integral. An antiderivative of x^n is x^(n+1)/(n+1), for n ≠ -1: ∫2x2dx = ∫2x-2dx = -2x-1 = -2x
x22 -2x
▶Indefinite integrals are defined up to an additive constant C, so this yields: x22 -2x + C