计算 (1) (3x+1)^2×(3x-1)^2 (2) 4-(-2)^-2-3^2÷(3.14-π)^0
计算 x(x+3)-(x-1)(x-2)
x^2-1/x^2+4x+4÷(x+1)×x^2+3x+2/x-1计算
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算 ∫(x^4-2x^3+x^2+1)/x(x-1)² dx
计算5x(2x² -3x+1)
3x^2×(-2x)+4x^6÷(-1/4x^3)计算
计算[x(3-4x)+2x2(x-1)]÷(-2x)
计算3x(x^2-x-1)-2x^2(1-x)
计算,3x(x平方-2x-1)-2x平方(x-3)
计算 2(x²-x+1)-(-2x+3x²)+(1-x)
计算 (x+1)(x-2)-4(x+3)(x-1)
计算:x-1/x-4-3(x-1)/x-2+2