HP50: how to transform '-(2.2*X^2-3.3*X-4.4+5*X^2)' w/ no ()

[Carsen]

First, I would use the command ->Q to set the calculator to exact mode and turn the expression's real numbers into integers. Then I would execute the command PARTFRAC. This seems to simplify the expression the way you want it. Except that the numbers are integers and not real numbers.

And if you use EVAL while in approx. mode to convert the fractions back to real numbers, the parentheses you want gone will reappear. I don't know how to manipulate this.

Lastly, I do not know if PARTFRAC will accomplish what you want every time. This is because I am not that knowledgeable about the 50g's CAS and I do not know exactly what it is you are accomplishing with your program.

Hope it helps figure out your problem.