\(\dfrac{6^2\cdot3^3}{12^2}\)
\(=\dfrac{2^2\cdot3^2\cdot3^3}{2^4\cdot3^2}\)
\(=\dfrac{2^2\cdot3^5}{2^4\cdot3^2}\)
\(=\dfrac{1\cdot3^3}{2^2\cdot1}\)
\(=\dfrac{3^3}{2^2}\)
\(=\dfrac{27}{4}\)
\(\dfrac{6^2\cdot3^3}{12^2}\)
\(=\dfrac{2^2\cdot3^2\cdot3^3}{2^4\cdot3^2}\)
\(=\dfrac{2^2\cdot3^5}{2^4\cdot3^2}\)
\(=\dfrac{1\cdot3^3}{2^2\cdot1}\)
\(=\dfrac{3^3}{2^2}\)
\(=\dfrac{27}{4}\)
Tính
C=\(\dfrac{2^{12}\cdot3^5-4^6\cdot9^2}{\left(2^2\cdot3^6\right)^6+8^4\cdot3^5}-\dfrac{5^{10}\cdot7^3-25^5\cdot49^2}{\left(125\cdot7\right)^3+5^9\cdot14^3}\)
Tìm x biết:
1)25/12x+11/15=9/10
2)3/2x-2/5=1/3x-1/4
3)29/12[x]-5/6=3/8
4)[4x+3/4]-5/4=2
5)2x+2x+3=144
Giúp tui vs
Tính:
1) 6.(\(\frac{2}{3}\))\(^3\)-3. (\(\frac{2}{3}\))\(^3\)-2. (-\(\frac{2}{3}\))+4
2) (\(\frac{2}{3}\))\(^3\)-(\(\frac{3}{4}\))\(^2\).(-1)\(^5\)
3) \(\frac{2^3+3.2^6-4^3}{2^3+3^2}\)
4) \(\frac{4^6.9^5+6^9.12^0}{8^4.3^{12}-6^{11}}\)
5) \(\frac{5^2.20^3-5^4.20^3+5^7.4^5}{20+5^3.4^5}\)
Giúp mình nha. Cảm ơn các bạn trước
Viết kết quả của các câu sau dưới dạng lũy thừa của một số nguyên tố
a) \(\dfrac{2^{14}.3^{12}}{6^{11}}\)
b) \(\dfrac{6^{18}}{9^9.8^5}\)
\(\dfrac{2^{19}.27^3-15.\left(-4\right)^9.9^4}{6^9.2^{10}+\left(-12\right)^{10}}\)
Bài 1: Tính giá trị các biểu thức sau
a,\(\left[2^{-3}-\left(\frac{3}{4}\right)^{-4}.\left(-\frac{1}{2}\right)^2\right]:\left[5-3\left(\frac{4}{15}\right)^0\right]^{-2}\)
b, \(\frac{2^3+3.2^6-4^3}{2^3+3^2}\)
c, \(\frac{5^5.20^3-5^4.20^3+5^7.4^5}{\left(20+5\right)^3.4^5}\)
d, \(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
e, \(\frac{5.\left(3.7^{15}-19.7^{14}\right)}{7^{16}+3.7^{15}}\)
f, \(\frac{3^3.\left(0,5\right)^5}{\left(1,5\right)^4}\)
Mk cần gấp
Tính :
a) \(25^3:5^2\)
b) \(\left(\dfrac{3}{7}\right)^{21}:\left(\dfrac{9}{49}\right)^6\)
c) \(3-\left(-\dfrac{6}{7}\right)^0+\left(\dfrac{1}{2}\right)^2:2\)
Tính biểu thức sau
\(\dfrac{2^{19}.27^3+15.4^9.9^4}{6^9.2^{10}+12^{10}}\)
rút gọn biểu thức:
\(1,\frac{\left(5^4-5^3\right)^3}{125^4}\)
\(2,\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
các bạn giúp ình với! HELP ME!!!!!!!!!!