Thread: Integrate problem- need to review for accuracy

Please check to see if I correctly solved this problem.

∫ sqrt(4X^2+9X^4)

∫ (x) sqrt(4+9X^2)
let u= 4 + 9x^2
let du= 18x dx

1/18∫ sqrt(u)du
2/3(1/18) (u)^3/2 +C
1/27 (4+ 9x^2)^3/2 +c

Originally Posted by tigermadness

Please check to see if I correctly solved this problem.

∫ sqrt(4X^2+9X^4)

∫ (x) sqrt(4+9X^2)
let u= 4 + 9x^2
let du= 18x dx

1/18∫ sqrt(u)du
2/3(1/18) (u)^3/2 +C
1/27 (4+ 9x^2)^3/2 +c

Thanks