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![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(a^6\)
b) 4.5.20.20.20=20.20.20.20=\(20^4\)
c) 3.2.12.12.3=6.6.6.6.6.3=\(6^5\).3= \(6^5\),\(6^1\)=\(6^6\)
Phần d mik ko bt lm
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,3^6\cdot3^7=3^{6+7}=3^{13}\)
\(b,5\cdot5^4\cdot5^2\cdot5^5=5^{1+4+2+5}=5^{12}\)
\(c,a^4\cdot a^5\cdot a^{10}=a^{4+5+10}=a^{19}\)
\(d,x^{10}\cdot x^4\cdot x=x^{10+4+1}=x^{15}\)
\(e,3\cdot3\cdot3\cdot9=3^3\cdot3^2=3^5\)
\(f,a^2\cdot a\cdot a\cdot a\cdot a\cdot a\cdot a=a^{2+1+1+1+1+1+1}=a^8\)
a: 3^6*3^7=3^13
b: \(=5^{1+4+2+5}=5^{11}\)
c: \(=a^{4+5+10}=a^{19}\)
d: \(=x^{10+4+1}=x^{15}\)
e: \(=3^3\cdot3^2=3^5\)
f: \(=a^2\cdot a^6=a^8\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(A=2.4.8.16.256=2.2^2.2^3.2^4.2^8=2^{18}\)
\(B=3.9.27.81.729=3.3^2.3^3.3^4.3^6=3^{16}\)
\(C=5.25.125.625.5^7=5.5^2.5^3.5^4.5^7=5^{17}\)
\(D=7.49.343.7^7=7.7^2.7^3.7^7=7^{13}\)
A = 2.4.8.16.256
A = 2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2
A = 218
a6
Chọn D em nhá