(3/4x^2y^3+6/5x^3y^4-9/10x^4y)除以3/5x^2y.3a^2(2a^2n+1+3a^2n+5a^2n-1)除以(-a)^2n-1.如果单项式-3x^2a-by^2与1/3x^3a+by^5a-8是同类项,求这个单项式的积.(2.4*10^4)^2除以(3*10^3)用句号隔开了,
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(3/4x^2y^3+6/5x^3y^4-9/10x^4y)除以3/5x^2y.3a^2(2a^2n+1+3a^2n+5a^2n-1)除以(-a)^2n-1.
如果单项式-3x^2a-by^2与1/3x^3a+by^5a-8是同类项,求这个单项式的积.
(2.4*10^4)^2除以(3*10^3)
用句号隔开了,
(3/4x^2y^3+6/5x^3y^4-9/10x^4y)除以3/5x^2y=5/4y^2 + 2xy^3 -3/2x^2
3a^2(2a^2n+1+3a^2n+5a^2n-1)除以(-a)^2n-1=3a^2(-2a^2-3a-5)=-6a^4-9a^3-15a^2
如果单项式-3x^2a-by^2与1/3x^3a+by^5a-8是同类项,求这个单项式的积?没看明白
(2.4*10^4)^2除以(3*10^3)=(2.4*10^4)(2.4*10^4)/(3*10^3)=(0.8*10)(2.4*10^4)=1.92*10^5
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