计算:(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4
问题描述:
计算:(-2a^2b)^2-(3a^3b^2)÷5a^2b^2+7a^9b^6÷2a^5b^4
答
(-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追问计算:a^3b^2÷1/5a^2-(5a^2b^3)^3÷{(-25a)(ab^2)^4}a^3b^2÷1/5a^2-(5a^2b^3)^3÷{(-25a)(ab^2)^4}=a^3b^2x5a^2-125a^6b^9÷(-25a^5b^8)=5a^5b^2+5ab追问计算:(-2a^2b^3)^3·(-1/2a^2b3)÷(-2a^2b^3)^2你准备追问到天亮吗? :)(-2a^2b^3)^3·(-1/2a^2b^3)÷(-2a^2b^3)^2=-8a^6b^9x(-1/2a^2b^3)÷(-2a^2b^3)^2=4a^4b^6÷4a^4b^6= 1我也没办法啊,我写作业写到现在,所以。。。。。。。。你可以采纳,然后在另一个问题里求助,不需要悬赏财富,一样会有很多人愿意答题:)