integrate sqrt(x)
Let's integrate: ∫(x)dx
Use the integration formula for x: ∫(xn)dx = x(n + 1)n + 1
x(12 + 1)12 + 1
12 + 1 = 1 + 2212 + 1 = 1 + 22
x(1 + 22)1 + 22
1 + 2 = 31 + 2 = 3
x3232
x32·23
Indefinite integrals are defined up to an additive constant C, so this yields: 2x323 + C
Result:   2x323 + C, with C being any constant