初一下期整式除法题(1)计算(-3/5x^2y^3)/(3x^2y)(2)(10a^4b^3c^2)/(5a^3bc)(3)(2x^2y)^3 × (-7xy^2)/(14x^4y^3)(4)(2a+b)^4/(2a+b)^2(5)x^2m+1y^3(n+1)z^4/(x^my)/(-2/3x^m+1y^nz^3)(6)(6x^2y^3)^2/(3xy^2)^2(7)一个氧原子弹质量约是2.657×10^-2
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初一下期整式除法题(1)计算(-3/5x^2y^3)/(3x^2y)(2)(10a^4b^3c^2)/(5a^3bc)(3)(2x^2y)^3 × (-7xy^2)/(14x^4y^3)(4)(2a+b)^4/(2a+b)^2(5)x^2m+1y^3(n+1)z^4/(x^my)/(-2/3x^m+1y^nz^3)(6)(6x^2y^3)^2/(3xy^2)^2(7)一个氧原子弹质量约是2.657×10^-2
初一下期整式除法题
(1)计算(-3/5x^2y^3)/(3x^2y)
(2)(10a^4b^3c^2)/(5a^3bc)
(3)(2x^2y)^3 × (-7xy^2)/(14x^4y^3)
(4)(2a+b)^4/(2a+b)^2
(5)x^2m+1y^3(n+1)z^4/(x^my)/(-2/3x^m+1y^nz^3)
(6)(6x^2y^3)^2/(3xy^2)^2
(7)一个氧原子弹质量约是2.657×10^-23千克,一个氢原子弹质量约是1.67×10^-24千克,一个氧原子弹的质量约是一个氢原子弹质量的多少倍?
(8)计算[(4x-1/2y)^2+y(x-y/4)]/(8x)
初一下期整式除法题(1)计算(-3/5x^2y^3)/(3x^2y)(2)(10a^4b^3c^2)/(5a^3bc)(3)(2x^2y)^3 × (-7xy^2)/(14x^4y^3)(4)(2a+b)^4/(2a+b)^2(5)x^2m+1y^3(n+1)z^4/(x^my)/(-2/3x^m+1y^nz^3)(6)(6x^2y^3)^2/(3xy^2)^2(7)一个氧原子弹质量约是2.657×10^-2
(1)-1/5y^2
(2)2ab^2c
(3)-4x^3y^2
(4)(2a+b)^2
(5)-2/3y^2(n+1)z
(6)4x^2y^2
(7)(2.657×10^-23)/(1.67×10^-24)=15.91
(8)2x-3/8y