计算:(3x^4-11x^3+5x^2-9x+7)÷(x^2+1).
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计算:(3x^4-11x^3+5x^2-9x+7)÷(x^2+1).计算:(3x^4-11x^3+5x^2-9x+7)÷(x^2+1).计算:(3x^4-11x^3+5x^2-9x+7)÷(x^2+1
计算:(3x^4-11x^3+5x^2-9x+7)÷(x^2+1).
计算:(3x^4-11x^3+5x^2-9x+7)÷(x^2+1).
计算:(3x^4-11x^3+5x^2-9x+7)÷(x^2+1).
原式=[(3x^4+3x²)-(11x³+11x)+(2x²+2)+2x+5]÷(x²+1)
=3x²-11x+2+(2x+5)/(x²+1)
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