Помогите пожалуйста позарез нужно

$y=2x^4+e^x+20sinx$

$f'(2x^4+e^x+20sin(x))$

$f'(2x^4)+f'(e^x)+f'(20sin(x))$

$2*f'(x^4)+e^x+20*f'(sin(x))$

$8x^3+e^x+20cos(x)$

$y=(20x^3+3x^2)*(10x^2-7x)$

$f'((10x^2-7x)*(20x^3+3x^2))$

$f'(10x^2-7x)*(20x^3+3x^2)+(10x^2-7x)*f'(20x^3+3x^2)$

$(20x^3+3x^2)*(f'(10x^2)+f'(-7x))+$ $(10x^2-7x)*(f'(20x^3)+f'(3x^2))$

$(20x^3+3x^2)*(10*f'(x^2)-7*f'(x))+$ $(10x^2-7x)*(20*f'(x^3)+3*f'(x^2)$

$(20x-7)*(20x^3+3x^2)+(60x^2+6x)*(10x^2-7x)$

$20x*(20x^3+3x^2)-7*(20x^3+3x^2)+$ $60x^2*(10x^2-7x)+6x*(10x^2-7x)$

$400x*x^3+120x*x^2-140x^3-63x^2+600x^4-420x*x^2$

$x*(1000x^3-440x^2-63x)$

$x^2*(1000x^2-440x-63)$