计算 (-2x²+½)(-2x²-½)
计算5x(2x² -3x+1)
计算:(1)x²/x-2 - 4x/x-2 + 4/x-2;
计算 ∫(x^4-2x^3+x^2+1)/x(x-1)² dx
2x^5·x^5+(-x)²·x·(-x)³计算
计算:(1+1/x)·x²-2x+1/x²-1;(x²/x-1-2x/1-x)÷x/x-1
计算: (x+3)(x²-x-2)
计算 (x+3)(x²-x-2)
计算(x²+4x-12/x²+x+1)(x²-1/x²-4x+4)(2-x/x&
(x²-2x)分之(x+2)-(x²-4x+4)分之(x-1) 计算
计算[(3X/(X-2))-(X/(X+2))]·((X²-4)/X)
2道分式计算[(x+4)(x-2)]/x³+2x²+x÷[(x-2)/x·(x+4)/(x+1)]2
计算:(1)(-2X²)³×(-2X)³-X³×【(-2X)²】