(x+1)∧2(x∧2+1)∧2(x-1)∧2 计算
计算 x(x+3)-(x-1)(x-2)
计算多项式除以多项式:(x∧3-3x∧2+4x-2)÷(x-1)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算5x(2x² -3x+1)
计算:(1)(2x/x+2)的平方×x+2/x(x-2)-(1/x-2-1/x+2)
x^2-1/x^2+4x+4÷(x+1)×x^2+3x+2/x-1计算
计算极限,习题如下.计算极限limx→0 (e∧x -e∧-x)╱x(1+x∧2)
计算:[(x²-2x+1)/(x²-1)]÷[(x-1)(x²+x)]-x
计算3x(x^2-x-1)-2x^2(1-x)
计算 2(x²-x+1)-(-2x+3x²)+(1-x)
计算:(1+1/x)·x²-2x+1/x²-1;(x²/x-1-2x/1-x)÷x/x-1
计算:(1)x²/x-2 - 4x/x-2 + 4/x-2;