a) \(a^3.a^5=a^{3+5}=a^8\)
b) \(x^7.x.x^4=x^{7+1+4}=x^{12}\)
c) \(3^5.4^5=\left(3.4\right)^5=12^5\)
d) \(8^5.2^3=8^5.8=8^{5+1}=8^6\)
_Chúc bạn học tốt_
a3 . a5 = a3+5 = a8
x7 . x . x4 = x7+1+4 =x12
35 . 45 = (3.4)5 =125
85 . 23 = 85 . 8 = 85+1=86
hok tốt .
TRả lời :.........................
a8/.////////////......................
Hk tốt/////////////////////////
a)\(a^3.a^5=a^{3+5}=a^8\)
b)\(x^7.x.x^4=x^{7+1+4}=x^{12}\)
c)\(3^5.4^5=\left(3.4\right)^5=12^5\)
d)\(8^5.2^3=8^5.8=8^{5+1}=8^6\)