F(x) = 3x^5*(5 - 4х)

Question

F(x) = 3x^5*(5 - 4х)

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Answer 1

F(x) = 3x⁵*(5-4х)=15x⁵-12x⁶
F'(x) = (15x⁵-12x⁶)'=15*5x⁴-12*6x⁵=75x⁴-72x⁵=x⁴(75-72x)