6x^3+17x^2+10x-3 / 2x+3
3x^2 + 4x - 1
2x + 3 [ 6x^3 + 17x^2 + 10x - 3 ]
6x^3 + 9x^2
-----------------------------------------------
8x^2 + 10x
8x^2 + 12x
--------------------------------
-2x - 3
-2x - 3
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So.....6x^3+17x^2+10x-3 / 2x+3 = 3x^2 + 4x - 1