现出的：1.ax+by+ay+bx2.x^3+13.x^2+x^34.x^2+x^3-25.x^2-6x+86.x^2-12x+357.(x^3-1)+(x-1)(6x+11)8.x^4-19.x^4+410.b^2+ab+ac+bc11.x^3+y^3+z^3-3xyz12.x^6+8x^3+913.x^2-100x+9914.x^2-x-y^2-y15.7x^2-19x-616.8x^...