use long division to divide 2x^4+x^3+12x^2-5x-11/x^2-2x-1?
this is for out pre calculus test and i used to be able to do it but now for our final i'm drawing a blank i've done it a couple of times and neither seem to be correct
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...........................2x^2+5x+24
............---------------------------------
x^2-2x-1|2x^4+x^3+12x^2-5x-11
.............2x^4-4x^3 -2x^2
...............----------------------
...................5x^3+14x^2-5x
...................5x^3-10x^2-5x
...................--------------------
..........................24x^2+0x-11
..........................24x^2-48x-24
..........................------------------
.................................48x+13