Hello, I'm here fitrst time.
I would like solve sytem of equations but the wolfram don't undrestand my command.
Below is my system od equations:
(a^3)b-((a-2c)^3)(b-2d)=12*145560
ab^3-(a-2c)(b-2d)^3=12*125560
(2((a-c)(b-d))^2)/((a-c)/d+(b-d)/c)=34567
ab-(a-2c)(b-2d)=1256
I enter it into Wolfram like this:
(a^3)*b-((a-2*c)^3)*(b-2*d)=12*145560 && a*b^3-(a-2*c)*(b-2*d)^3=12*125560 && (2*((a-c)*(b-d))^2)/((a-c)/d+(b-d)/c)=34545 && a*b-(a-2*c)*(b-2*d)=1234
I have got reply from Woflram like this: 
Please for help. What did I do wrong?
Best Regards
Arek
