## qasaali Group Title integrate (2x^3-1)^2(6x^2) 2 years ago 2 years ago

1. lgbasallote Group Title

let u = 2x^3 - 1 du = 6x^2 so therefore the integral just becomes $\int u^2 du$ does that help?

2. qasaali Group Title

hey continue it dont stop u r on the right track

3. lgbasallote Group Title

that's already an easy integral...do you still need help?

4. Snapbacklive Group Title

24x^8-24x^5+6x^2

5. WLB250219 Group Title

$(2x^3-1)^2(6x^2$

6. amistre64 Group Title

i simple way is just to expand it all out into a single polynomial and integrate it term for term

7. amistre64 Group Title

but if method is "defined", then lgbas is prolly best

8. WLB250219 Group Title

true so in this question you can say $49 * 12x$

9. WLB250219 Group Title

|dw:1344008290718:dw|that will dije you the answer that you are looking for

10. WLB250219 Group Title

|dw:1344008471163:dw|

11. WLB250219 Group Title

you can do it i believe you can you are smart !!