Determine ∫(7x6+2x) dx\int (7x^6 + 2x) \, dx∫(7x6+2x)dx.
x7+x2+Cx^7 + x^2 + Cx7+x2+C
42x5+2+C42x^5 + 2 + C42x5+2+C
76x7+x2+C\frac{7}{6}x^7 + x^2 + C67x7+x2+C
x7+2x2+Cx^7 + 2x^2 + Cx7+2x2+C