> How to find the value of a0 and b0 in terms of x.
If you are looking for a symbolic solution in x you will have to use the symbolic "solve" command, not a numeric solve block.
In Mathcad (15 and below) we were able to symbolically evaluate a solve block, but unfortunately in Prime this is not possibly anymore.
You can get numeric values for specific x using the solve block, but not a symbolic solution in terms of x.
Not willing to retype the expressions from your screenshot, so here is a simpler example which shows how a symbolic solution can be derived.
WE
