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【计算(过程)】-x^2*(-x)^3+3x^3*(-x^2)-4(-x)*(-x)^4
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算[(3X/(X-2))-(X/(X+2))]·((X²-4)/X)
计算 ∫(x^4-2x^3+x^2+1)/x(x-1)² dx
计算 x(x+3)-(x-1)(x-2)
2道分式计算[(x+4)(x-2)]/x³+2x²+x÷[(x-2)/x·(x+4)/(x+1)]2
计算:(1+1/x)·x²-2x+1/x²-1;(x²/x-1-2x/1-x)÷x/x-1
x^2-1/x^2+4x+4÷(x+1)×x^2+3x+2/x-1计算
计算:2x-6/4-4x+x^2除以(x+3)乘以x^2+x-6/x+3
2x^5·x^5+(-x)²·x·(-x)³计算
计算:(1)x²/x-2 - 4x/x-2 + 4/x-2;
计算5x(2x² -3x+1)