F'(2), если f(x)=x^4-5x^3+2x^2-7
F (x) = x⁴-5x³+2x²-7 f ⁾ (x) = 4x³-15x²+4x f ⁾ (2) = 4·2³-15·2²+4·2=32-60+8= -20