Question

derivative of (2x-4)/(5x+5)

Answer 1

\[\frac{ d }{ dx }\left( \frac{ u }{ v } \right)=\frac{ vu'-uv' }{v^2 }\]

Answer 2

i did the same on wolfram alfa denominantor is same but upper part is +6

Answer 3

thanks surjit, i got it now