(5x^4-3x^3+2x^2-1)/(x^2+4)

Answer 1

5x^2 -3x -18 +((12x+71)/(x^2+4))
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x^2 +4| 5x^4 -3x^3 +2x^2 +0x -1
-5x^4 -20x^2
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-3x^3 -18x^2 +0x -1
+3x^2 +12x
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-18x^2+12x -1
+18x^2 +72
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12x +71

Answer 2

Whoops, some of it didn't line up, but I used the long division method