Question 92151
3x^2 - x (4 - 3 [ x - 4)]
Start with the intermost parentheses:
3x^2 - x [4 - 3x +12]
Then move on to the last set of parentheses:
{{{3x^2 - 4x + 3x^2 - 12x}}}
Simplify:
{{{6x^2 -48x}}}