(1)(y^3)^2+(y^2)^3-2y*y^5 (2)(3x+2)(3x-2)-5x(x-1)-(2x-1)(2x-1)

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/03 01:08:38
(1)(y^3)^2+(y^2)^3-2y*y^5 (2)(3x+2)(3x-2)-5x(x-1)-(2x-1)(2x-1)

(1)(y^3)^2+(y^2)^3-2y*y^5 (2)(3x+2)(3x-2)-5x(x-1)-(2x-1)(2x-1)
(1)(y^3)^2+(y^2)^3-2y*y^5 (2)(3x+2)(3x-2)-5x(x-1)-(2x-1)(2x-1)

(1)(y^3)^2+(y^2)^3-2y*y^5 (2)(3x+2)(3x-2)-5x(x-1)-(2x-1)(2x-1)
(1)(y^3)^2+(y^2)^3-2y*y^5
=y^6+y^6-2y^6
=0
(2)(3x+2)(3x-2)-5x(x-1)-(2x-1)(2x-1)
=9x²-4-5x²+5x-(4x²-4x+1)
=4x-5

y^3)^2+(y^2)^3-2y*y^5
=y^6+y^6-2y^6
=0
3x+2)(3x-2)-5x(x-1)-(2x-1)(2x-1)
=9x^2-4-5x^2+5x-4x^2+4x-1
=9x-5