1.

Find 7x2-x3+2x dx.

A. ( frac{7x^3}{3}+ frac{x^4}{5}- frac{2x^2}{2}+C )
B. ( frac{7x^3}{3}+ frac{x^4}{4}+ frac{2x^2}{2}+C )
C. ( frac{7x^5}{9}- frac{x^4}{4}+ frac{2x^2}{2}+C )
D. ( frac{7x^3}{3}- frac{x^4}{4}+x^2+C )
Answer» E.


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