∫x2(2x+1)2dx=...\int x^2(2x+1)^2dx=...∫x2(2x+1)2dx=...
x5+43x4+12x3+Cx^5+\frac{4}{3}x^4+\frac{1}{2}x^3+Cx5+34x4+21x3+C
45x5+x4+12x3+C\frac{4}{5}x^5+x^4+\frac{1}{2}x^3+C54x5+x4+21x3+C
45x5+x4+13x3+C\frac{4}{5}x^5+x^4+\frac{1}{3}x^3+C54x5+x4+31x3+C
x5+x4+x3+Cx^5+x^4+x^3+Cx5+x4+x3+C
45x5+x4+x3+C\frac{4}{5}x^5+x^4+x^3+C54x5+x4+x3+C