5d^4-15d^2/48d-16d^3 при d=-18,4,d=18,4

[latex]\frac{5d^4-15d^2}{48d-16d^3}=\frac{5d(d^2-3)}{16(3-d^2)}=-\frac{5d}{16}=-\frac{б18,4*5}{16}=б5,75[/latex]