![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
1.
a) \(3^4\times3^5\times3^6=3^{4+5+6}=3^{15}\)
b) \(5^2\times5^4\times5^5\times25=5^2\times5^4\times5^5\times5^2=5^{2+4+5+2}=5^{13}\)
c) \(10^8\div10^3=10^{8-3}=10^5\)
d) \(a^7\div a^2=a^{7-2}=a^5\)
2.
\(987=900+80+7\\ =9\times100+8\times10+7\\ =9\times10^2+8\times10^1+7\times10^0\)
\(2021=2000+20+1\\ =2\times1000+2\times10+1\times1\\ =2\times10^3+2\times10^1+1\times10^0\)
\(abcde=a\times10000+b\times1000+c\times100+d\times10+e\times1\\ =a\times10^4+b\times10^3+c\times10^2+d\times10^1+e\times10^0\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a: \(3\cdot3\cdot3\cdot3\cdot3=3^5\)
b: \(y\cdot y\cdot y\cdot y=y^4\)
c: \(5\cdot p\cdot5\cdot p\cdot2\cdot q\cdot4\cdot q=25\cdot2\cdot4\cdot p^2q^2=2\cdot\left(10qp\right)^2\)
d: \(a\cdot a+b\cdot b+c\cdot c+d\cdot d\cdot d\cdot d=a^2+b^2+c^2+d^4\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 5.5.5.5.5 = 5 5
b) ( − 3 ) . ( − 3 ) . ( − 3 ) .3.3 = ( − 3 ) . ( − 3 ) . ( − 3 ) . ( − 3 ) . ( − 3 ) = ( − 3 ) 5
c) 2.2.2. ( − 5 ) . ( − 5 ) . ( − 5 ) = 2. ( − 5 ) . 2. ( − 5 ) . 2. ( − 5 ) = ( − 10 ) . ( − 10 ) . ( − 10 ) = ( − 10 ) 3
d) ( − 8 ) . ( − 5 ) 3 .64 = ( − 2 ) 3 . ( − 5 ) 3 .4 3 = ( − 2 ) . ( − 5 ) .4 3 = 40 3
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5.p.p.5.p^2.q.4.q=\left(5.5.4\right).\left(p.p.p^2\right).\left(q.q\right)=100p^4.q^2\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a, \(=7.7.5.5.5^2=7^2.5^4\)
b, \(=2.3.2.3.3.2^2=3^3.2^4\)
c, \(=5^4\)
xin tiick
câu a nha, 5^5