-(2xy)^3+(-3xy)^3 (5ab)^2+(3ab)^2 8^2012*1/8^2013
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-(2xy)^3+(-3xy)^3 (5ab)^2+(3ab)^2 8^2012*1/8^2013
-(2xy)^3+(-3xy)^3
(5ab)^2+(3ab)^2
8^2012*1/8^2013
(-4a^2)^3+(-4a^3)^2
-x^21+-x21
-a·a^5-(a^2)^3-(-2a^3)^2
-(2xy)^3+(-3xy)^3
(5ab)^2+(3ab)^2
8^2012*1/8^2013
(-4a^2)^3+(-4a^3)^2
-x^21+-x21
-a·a^5-(a^2)^3-(-2a^3)^2
-(2xy)^3+(-3xy)^3
=-8x^3y^3-27x^3y^3
=-35x^3y^3
(5ab)^2+(3ab)^2
=25a²b²+9a²b²
=34a²b²
8^2012*1/8^2013
=8^2012*1/8^2012×1/8
=(8*1/8)^2012×1/8
=1/8
(-4a^2)^3+(-4a^3)^2
=-64a^6+16a^6
=-48a^6
-x^21+(-x)^21
=-x^21-x^21
=-2x^21
再问: 还有一个哦,还有请问-x^21+-x^21=?
再答: -a·a^5-(a^2)^3-(-2a^3)^2=-a^6-a^6-4a^6=-6a^6
再问: -x^21+-x^21=? 2(a^2)^3*a^3-(3a^3)^3+(5a^7)a^2 谢谢了,加分哦~
再答: -x^21+-x^21 没有+-的 -x^21+(-x)^21 =-x^21-x^21 =-2x^21 2(a^2)^3*a^3-(3a^3)^3+(5a^7)a^2 =2a^9-27a^9+5a^9 =-20a^9
=-8x^3y^3-27x^3y^3
=-35x^3y^3
(5ab)^2+(3ab)^2
=25a²b²+9a²b²
=34a²b²
8^2012*1/8^2013
=8^2012*1/8^2012×1/8
=(8*1/8)^2012×1/8
=1/8
(-4a^2)^3+(-4a^3)^2
=-64a^6+16a^6
=-48a^6
-x^21+(-x)^21
=-x^21-x^21
=-2x^21
再问: 还有一个哦,还有请问-x^21+-x^21=?
再答: -a·a^5-(a^2)^3-(-2a^3)^2=-a^6-a^6-4a^6=-6a^6
再问: -x^21+-x^21=? 2(a^2)^3*a^3-(3a^3)^3+(5a^7)a^2 谢谢了,加分哦~
再答: -x^21+-x^21 没有+-的 -x^21+(-x)^21 =-x^21-x^21 =-2x^21 2(a^2)^3*a^3-(3a^3)^3+(5a^7)a^2 =2a^9-27a^9+5a^9 =-20a^9
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