3x^2y-{xyz-(2xyz-x^2z)-4x^2z+[3x^2y-(4xyz-5x^z-3xyz)]}
问题描述:
3x^2y-{xyz-(2xyz-x^2z)-4x^2z+[3x^2y-(4xyz-5x^z-3xyz)]}
化简
答
3x^2y-{xyz-(2xyz-x^2z)-4x^2z+[3x^2y-(4xyz-5x^2z-3xyz)]}=3x^2y-[xyz-2xyz+x^2z-4x^2z+(3x^2y-4xyz+5x^2z+3xyz)]=3x^2y-(xyz-2xyz+x^2z-4x^2z+3x^2y-4xyz+5x^2z+3xyz)=3x^2y-xyz+2xyz-x^2z+4x^2z-3x^2y+4xyz-5x^...