计算:(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/01 21:35:07
计算:(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4

计算:(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4
计算:(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4

计算:(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4
(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4
=4a^4b^2-3a/5+7a^4b^2/2
=15a^4b^2/2-3a/5

(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4
=4a^4b^2-3/5a+7/2a^4b^2=

(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4
=(-2a^2b)^2-3a÷5+7a^4b^2÷2
=(15/2)*a^4b^2-0.6a

(-2a^2b)^2-(3a^3b^2)/5a^2b^2+7a^9b^6/2a^5b^4=4a^4b^2--3a/5+7a^4b^2/2=(8a^4b^2+7a^4b^2)/2-3a/5=15a^4b^2/2-3a/5.