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9652:3251-3251:2250

(3.32)52:3251-(25)51:2250

=352.3252:3251-2255:2250

=352.(3252:3251)-2255-250

=352.3252-51-25

=352.32-32

=32.(352-1)

1 tháng 7 2021

\(25^6\)\(5^{10}\)\(5^{12}\)\(5^{10}\)\(5^{12+10}\)\(5^{22}\)

\(8^4\)\(16^3\)\(32\)\(2^{3.4}\)\(2^{3.4}\)\(2^5\)\(2^{12}\)\(2^{12}\)\(2^5\)\(2^{12+12+5}\)\(2^{29}\)

\(27^4\)\(81^{10}\)\(3^{12}\)\(3^{40}\)\(3^{12+40}\)\(3^{52}\)

Chúc bạn học tốt nhé !

a: \(=-25\cdot4-27=-100-27=-127\)

b: \(=-65:\left(-13\right)-25\cdot4=5-100=-95\)

c: \(=100\cdot\left(-47\right)+53\cdot\left(-100\right)=100\cdot\left(-100\right)=-10000\)

d: \(=\left[\left(-3\right)^{13}:3^{10}-73\right]:\left(-5\right)^2-14\)

\(=\left(-100\right):25-14=-4-14=-18\)

7 tháng 7 2016

A)n=1, n=1

C) n=5

7 tháng 7 2016

a) \(n^{51}=n\)

\(\Rightarrow n^{51}-n=0\)

\(n\left(n^{50}-1\right)=0\)

\(\Rightarrow\orbr{\begin{cases}n=0\\n^{50}-1=0\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}n=0\\n^{50}=1\end{cases}}\)

\(\Rightarrow n\in\left\{-1;0;1\right\}\)

b) \(\frac{1}{9}.27^n=3^n\)

\(\Rightarrow3^{-2}.3^{3n}=3^n\)

\(3^{3n-2}=3^n\)

\(\Rightarrow3n-2=n\)

\(3n-n=2\)

\(2n=2\)

\(n=2:2=1\)

c) \(3^{-2}.3^4.3^n=3^7\)

\(3^{n+4-2}=3^7\)

\(3^{n+2}=3^7\)

\(\Rightarrow n+2=7\)

\(\Rightarrow n-7=5\)

d) \(32^{-n}.16^n=2048\)

\(2^{-5n}.2^{4n}=2^{10}\)

\(2^{4n-5n}=2^{10}\)

\(2^{-n}=2^{10}\)

\(\Rightarrow-n=10\)

\(\Rightarrow n=-10\)

6 tháng 10 2018

\(\dfrac{14^{16}}{21^{32}}.\dfrac{35^{48}}{10^{16}}.\dfrac{15^{32}}{7^{96}}\)=\(\dfrac{\left(2.7\right)^{16}.\left(5.7\right)^{48}.\left(3.5\right)^{32}}{\left(3.7\right)^{32}.\left(2.5\right)^{16}.7^{96}}\)=\(\dfrac{2^{16}.7^{16}.5^{48}.7^{48}.3^{32}.5^{32}}{3^{32}.7^{32}.2^{16}.5^{16}.7^{96}}\)

=\(\dfrac{2^{16}.3^{32}.5^{80}.7^{64}}{2^{16}.3^{32}.5^{16}.7^{128}}=\dfrac{5^{64}}{7^{64}}\)