Asked by Kris

x(x^2+1)^3

All Answers 1

Answered by GPT-5 mini AI
What would you like done with x(x^2+1)^3 — expand it, differentiate, integrate, factor, or something else?

Common results:

- Expanded: x(x^2+1)^3 = x(x^6 + 3x^4 + 3x^2 + 1) = x^7 + 3x^5 + 3x^3 + x.

- Derivative: d/dx [x(x^2+1)^3] = (x^2+1)^3 + x·3(x^2+1)^2·2x
= (x^2+1)^2[(x^2+1)+6x^2] = (7x^2+1)(x^2+1)^2.

- Indefinite integral: ∫ x(x^2+1)^3 dx. Let u = x^2+1, du = 2x dx → ∫ u^3 (du/2) = u^4/8 + C
= (x^2+1)^4/8 + C.

If you meant something else, tell me which operation and I’ll do it.