(1)、(-xy^2z^3)^2*(-x^2y^3)^3(2)、(-a^2b)^4/(-0.5ab^2)(3)-2x^2y(3xy^2z-2y^2z) (4)4(-1.5x-3y)(1.5x-3y)(5)、(-a-3b)(7a+2b)简要说明:过程要具体.^代表乘方^2代表谁的2次方./代表除以
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![(1)、(-xy^2z^3)^2*(-x^2y^3)^3(2)、(-a^2b)^4/(-0.5ab^2)(3)-2x^2y(3xy^2z-2y^2z) (4)4(-1.5x-3y)(1.5x-3y)(5)、(-a-3b)(7a+2b)简要说明:过程要具体.^代表乘方^2代表谁的2次方./代表除以](/uploads/image/z/438103-55-3.jpg?t=%EF%BC%881%EF%BC%89%E3%80%81%EF%BC%88-xy%5E2z%5E3%EF%BC%89%5E2%2A%EF%BC%88-x%5E2y%5E3%EF%BC%89%5E3%282%29%E3%80%81%EF%BC%88-a%5E2b%29%5E4%2F%28-0.5ab%5E2%29%283%29-2x%5E2y%283xy%5E2z-2y%5E2z%29+%EF%BC%884%EF%BC%894%EF%BC%88-1.5x-3y%29%281.5x-3y%29%285%29%E3%80%81%EF%BC%88-a-3b%29%287a%2B2b%29%E7%AE%80%E8%A6%81%E8%AF%B4%E6%98%8E%3A%E8%BF%87%E7%A8%8B%E8%A6%81%E5%85%B7%E4%BD%93.%5E%E4%BB%A3%E8%A1%A8%E4%B9%98%E6%96%B9%5E2%E4%BB%A3%E8%A1%A8%E8%B0%81%E7%9A%842%E6%AC%A1%E6%96%B9.%2F%E4%BB%A3%E8%A1%A8%E9%99%A4%E4%BB%A5)
(1)、(-xy^2z^3)^2*(-x^2y^3)^3(2)、(-a^2b)^4/(-0.5ab^2)(3)-2x^2y(3xy^2z-2y^2z) (4)4(-1.5x-3y)(1.5x-3y)(5)、(-a-3b)(7a+2b)简要说明:过程要具体.^代表乘方^2代表谁的2次方./代表除以
(1)、(-xy^2z^3)^2*(-x^2y^3)^3
(2)、(-a^2b)^4/(-0.5ab^2)
(3)-2x^2y(3xy^2z-2y^2z) (4)4(-1.5x-3y)(1.5x-3y)
(5)、(-a-3b)(7a+2b)
简要说明:过程要具体.^代表乘方^2代表谁的2次方./代表除以
(1)、(-xy^2z^3)^2*(-x^2y^3)^3(2)、(-a^2b)^4/(-0.5ab^2)(3)-2x^2y(3xy^2z-2y^2z) (4)4(-1.5x-3y)(1.5x-3y)(5)、(-a-3b)(7a+2b)简要说明:过程要具体.^代表乘方^2代表谁的2次方./代表除以
1、原式=(x^2y^4z^6)*(-x^6y^9)=-x^8y^13z^6
2、原式=(a^8b^4)/(-0.5ab^2)=-2a^7b^2
3、原式=-6x^3y^3z+4x^2y^3zz
4、原式=-(3x+6y)(3x-6y)=-(9x²-36y²)=36y²-9x²
5、原式=-7a²-2ab-21ab-6b²=-7a²-23ab-6b²
(1)原式等= - X^(2 + 2*3) * Y^(2*2 + 3 + 3) * Z^(3*2) = - X^8 * Y^10 * Z^6
1、原式=(x^2y^4z^6)*(-x^6y^9)=-x^8y^13z^6
2、原式=(a^8b^4)/(-0.5ab^2)=-2a^7b^2
3、原式=-6x^3y^3z+4x^2y^3zz
4、原式=-(3x+6y)(3x-6y)=-(9x²-36y²)=36y²-9x²
5、原式=-7a²-2ab-21ab-6b²=-7a²-23ab-6b²
祝楼主学有所成,^_^
1、原式=(x^2y^4z^6)*(-x^6y^9)=-x^8y^13z^6(整式乘法)
2、原式=(a^8b^4)/(-0.5ab^2)=-2a^7b^2(整式除法)
3、原式=-6x^3y^3z+4x^2y^3zz(整式乘法)
4、原式=-(3x+6y)(3x-6y)=-(9x²-36y²)=36y²...
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1、原式=(x^2y^4z^6)*(-x^6y^9)=-x^8y^13z^6(整式乘法)
2、原式=(a^8b^4)/(-0.5ab^2)=-2a^7b^2(整式除法)
3、原式=-6x^3y^3z+4x^2y^3zz(整式乘法)
4、原式=-(3x+6y)(3x-6y)=-(9x²-36y²)=36y²-9x²(平方差公式)
5、原式=-7a²-2ab-21ab-6b²=-7a²-23ab-6b² (整式乘法)
七年级第一章内容,都是基本计算,法则记清!
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(1)(-xy^2z^3)^2*(-x^2y^3)^3= -(x^2y^4z^6)*(-x^6y^9)=(x^2y^4z^6)*(x^6y^9)=x^8y^13z^6
(2) (-a^2b)^4/(-0.5ab^2)=a^8b^4/(-0.5ab^2)=-2a^8b^4/(ab^2)=-2a^7b^2
(3) -2x^2y(3xy^2z-2y^2z) =-6x^3y^3z+4x...
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(1)(-xy^2z^3)^2*(-x^2y^3)^3= -(x^2y^4z^6)*(-x^6y^9)=(x^2y^4z^6)*(x^6y^9)=x^8y^13z^6
(2) (-a^2b)^4/(-0.5ab^2)=a^8b^4/(-0.5ab^2)=-2a^8b^4/(ab^2)=-2a^7b^2
(3) -2x^2y(3xy^2z-2y^2z) =-6x^3y^3z+4x^2y^3z
(4) 4(-1.5x-3y)(1.5x-3y)=-2(1.5x+3y)2(1.5x-3y)=-(3x+6y)(3x-6y)=-(9x²-36y²)=36y²-9x²
(5) (-a-3b)(7a+2b)=-7a²-2ab-21ab-6b² =-7a²-23ab-6b²
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