a+b)^2(a-b)^2(a^2+b^2)^2
1.(a+b)^2(a-b)^2(a^2+b^2)^22.(2x-y+z)(-2x-y+z)3.(3x^3y^3z)^4÷(6x^2y^3z)^2*(1/2xy^2z)...
1.(a+b)^2(a-b)^2(a^2+b^2)^2
2.(2x-y+z)(-2x-y+z)
3.(3x^3y^3z)^4÷(6x^2y^3z)^2*(1/2xy^2z) 展开
2.(2x-y+z)(-2x-y+z)
3.(3x^3y^3z)^4÷(6x^2y^3z)^2*(1/2xy^2z) 展开
展开全部
1.(a+b)^2(a-b)^2(a^2+b^2)^2
=(a^2-b^2)^2(a^2+b^2)^2
=(a^4-b^4)^2
=a^8-2a^4b^4+b^4
2.(2x-y+z)(-2x-y+z)
=(-y+z)^2-4x^4
=y^2+z^2-2yz-4x^4
3.(3x^3y^3z)^4÷(6x^2y^3z)^2*(1/2xy^2z)
=81x^12y^12z^4÷36x^4y^6z^2*(1/2xy^2z)
=81x^12y^12z^4÷72x^3y^4z
=9/8x^9y^8z^3
祝学习进步
=(a^2-b^2)^2(a^2+b^2)^2
=(a^4-b^4)^2
=a^8-2a^4b^4+b^4
2.(2x-y+z)(-2x-y+z)
=(-y+z)^2-4x^4
=y^2+z^2-2yz-4x^4
3.(3x^3y^3z)^4÷(6x^2y^3z)^2*(1/2xy^2z)
=81x^12y^12z^4÷36x^4y^6z^2*(1/2xy^2z)
=81x^12y^12z^4÷72x^3y^4z
=9/8x^9y^8z^3
祝学习进步
追问
(3x-y)(y+3x)-(x-2y)(4x+3y)
追答
(3x-y)(y+3x)-(x-2y)(4x+3y)
=9x^2-y^2-4x^2+5xy+6y^2
=5x^2+5xy+5y^2
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