Question 457078
<pre>
i need help solving this problem:
 
(3-4((-2)+h)^2)-(3-4((-2)^2)/h

the answer is (16h-4h^2)/(h)

my question is how did they get to the answer? If you could please show me a step by step instruction on how to solve
this problem i would greatly appreciate it. thank you.
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<font color = blue><font  size = 2><font face = tahoma><b>
{{{(3 - 4(- 2 + h)^2 - (3 - 4((- 2)^2)))/h}}}
  {{{(3 - 4(4 - 4h + h^2) - (3 - 4(4)))/h}}}
     {{{(3 - 16 + 16h - 4h^2 - (- 13))/h}}}
         {{{(- 13 + 16h - 4h^2 + 13)/h}}}
                  {{{(16h - 4h^2)/h}}} = {{{h(16 - 4h)/h}}} = {{{cross(h)(16 - 4h)/cross(h)}}} = 16 - 4h
the answer is (16h-4h^2)/(h) <=== How can this be the answer, when it can be simplified further?</font></font></font></b></pre>