∫7x8dx=...\int \frac{7}{x^8}dx=...∫x87dx=...
1x7+C\frac{1}{x^7}+Cx71+C
−1x7+C-\frac{1}{x^7}+C−x71+C
−78x7+C-\frac{7}{8x^7}+C−8x77+C
−5x7+C-\frac{5}{x^7}+C−x75+C
−7x7+C-\frac{7}{x^7}+C−x77+C