计算题啊!
3a²b²c×(-4a³bc)×(-5ab²c)(x-y)³的平方×(x-y)³(1.5×10的6次方)×(6...
3a²b²c×(-4a³bc)×(-5ab²c)
(x-y)³的平方×(x-y)³
(1.5×10的6次方)×(6×10的9次方)×(4x10³)
5ax(-2/3ax)x(-2.5axy)x(-3x²y) 展开
(x-y)³的平方×(x-y)³
(1.5×10的6次方)×(6×10的9次方)×(4x10³)
5ax(-2/3ax)x(-2.5axy)x(-3x²y) 展开
1个回答
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3a²b²c×(-4a³bc)×(-5ab²c)
=60a^(2+3+1)b^(2+1+2)c^(1+1+1)
=60a^5b^5c³
(x-y)³的平方×(x-y)³
=(x-y)^6×(x-y)³
=(x-y)^9
(1.5×10的6次方)×(6×10的9次方)×(4x10³)
=36×10^(6+9+3)
=3.6×10^19
5ax(-2/3ax)x(-2.5axy)x(-3x²y)
=25a^(1+1+1)x^(1+1+2)y^(1+1)
=25a³x^4y²
=60a^(2+3+1)b^(2+1+2)c^(1+1+1)
=60a^5b^5c³
(x-y)³的平方×(x-y)³
=(x-y)^6×(x-y)³
=(x-y)^9
(1.5×10的6次方)×(6×10的9次方)×(4x10³)
=36×10^(6+9+3)
=3.6×10^19
5ax(-2/3ax)x(-2.5axy)x(-3x²y)
=25a^(1+1+1)x^(1+1+2)y^(1+1)
=25a³x^4y²
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