Question 62636
I'm not sure where your absolute avalue ends.  If I misinterpretted this, let me know and I will edit your question and my solution.
:
Evaluate 
:
{{{a-abs(b)*a^2-ba}}}   if a = -3 and b = -4
{{{(-3)-abs(-4)*(-3)^2-(-4)(-3))}}}
{{{-3-abs(-4)(9)-12}}}
{{{-3-4(9)-12}}}
{{{-3-36-12}}}
{{{highlight(-51)}}}
Happy Calculating!!!