Question

Can someone explain what happened to the x^2
http://tutorial.math.lamar.edu/Classes/CalcII/IntegrationByParts_files/eq0055MP.gif

Answer 1

the int of x^2

Answer 2

aw

Answer 3

:(

Answer 4

yes

Answer 5

last integral was solved by a u-substitution

Answer 6

they used
\[u=x^3+1, du= 3x^2dx,\frac{1}{3}du=x^2dx\] that is why you don't see it in the answer

Answer 7

ohhhhhh
makes sense thanks