x*x^3+(-2x^2)^2+14x^6/(-4x^2)怎么做?
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x*x^3+(-2x^2)^2+14x^6/(-4x^2)怎么做?x*x^3+(-2x^2)^2+14x^6/(-4x^2)怎么做?x*x^3+(-2x^2)^2+14x^6/(-4x^2)怎么做?原
x*x^3+(-2x^2)^2+14x^6/(-4x^2)怎么做?
x*x^3+(-2x^2)^2+14x^6/(-4x^2)怎么做?
x*x^3+(-2x^2)^2+14x^6/(-4x^2)怎么做?
原式=x^4+4x^4-(14/4)×(x^6/x2）=x^4+4x^4-7x^4/2=(1+4-7/2)x^4=3x^4/2
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