Given f\left(x\right)=\frac{2}{5x^3+5}, find f'\left(x\right)
- f'\left(x\right)=-\frac{2\cdot15x^2}{5x^3+5}
- f'\left(x\right)=-\frac{2\cdot15x^2}{\left(5x^3+5\right)^2}
- f'\left(x\right)=-\frac{15x^2}{\left(3x^3+5\right)^2}
- f'\left(x\right)=-\frac{2\cdot15x^2}{2^2}