Объяснение:
1) (3x⁴+2x¹⁵)' = 12x³ + 30x¹⁴ = 6x³(2+5x¹¹)
2) (7x³-3x⁷)' = 21x² - 21x⁶ = 21x²(1-x⁴)
3) (3/x⁴ )' = -12/x⁵
4) (x²+1/x³)' = 2x- 3/x⁴
