I am tying to simplify the following expression using
Factor. However it is not always possible to completely simplify an expression.
expr = a + (1+b^2+b (2-(4 d^2 e)/(1+d (-1+e))))^(1-n/2);
I am interested in simplifying this such that it will not have a fractional form as a sum. However in this way a final fractional form is of course expected.
The desired form is the following
expr = ((a)*(1+d (-1+e))^(1-n/2) + (((1+b^2)*(1+d (-1+e))+b (2(1+d (-1+e))-4 d^2 e))^(1-n/2)) )/(1+d (-1+e))^(1-n/2);
where the numerator has the terms with positive powers and an overall denominator with also positive powers
How to I use
PowerExpand in simplifying such expression?