\(=\frac{7^2.3^3-3^2.5^2.7+7.3^4}{3.3^2.5^2-2^3.5^3}\)\(=\frac{7.3^2\left(7.3-5^2+3^2\right)}{5^2\left(3^3-2^3.5\right)}\)\(=\frac{7.3^2.5}{5^2.\left(-13\right)}=\frac{7.3^2}{5.\left(-13\right)}=\frac{63}{-65}\)
Tuyển Cộng tác viên Hoc24 nhiệm kì 26 tại đây: https://forms.gle/dK3zGK3LHFrgvTkJ6
\(=\frac{7^2.3^3-3^2.5^2.7+7.3^4}{3.3^2.5^2-2^3.5^3}\)\(=\frac{7.3^2\left(7.3-5^2+3^2\right)}{5^2\left(3^3-2^3.5\right)}\)\(=\frac{7.3^2.5}{5^2.\left(-13\right)}=\frac{7.3^2}{5.\left(-13\right)}=\frac{63}{-65}\)
tính : ( tính nhanh nếu đc )
\(\frac{49-3^3-15^2.7+7.81}{3.15^2-10^3}\)
\(\frac{15^3-3.15^2-3^3}{11.3^4}\)
\(\frac{8^5.16^3}{4^{13}}-\frac{3^{33}.4^{15}}{6^{32}}\)
Tính
a) ( \(\frac{-2}{3}\)+\(\frac{4}{15}\))3
b) (\(\frac{3}{21}\)- \(\frac{2}{7}\))2
d) 3 - (-3.15)0 + (0.5)2 :2
e) 81 - 32 : (0.375)2
Thanks <3
tìm x, biết
\(x=\frac{10^2.5^3.15^6}{3^6.5^{10}}\)
a/ 15^3-3.15^2-3^3 phần 11.34
b/ 8^5.16^3 phần 4^13 - 3^33.4^15 phần 6^32
Tính: \(H=\frac{8}{1^2.3^2}+\frac{16}{3^2.5^2}+\frac{24}{5^2.7^2}+...+\frac{48}{11^2.13^2}\)
Bài 1 hãy tính
1 . A = \(\frac{9^5.5^7}{45^7}\)
2 .B = \(\left(\frac{2^2.2^3}{4^2.16}\right)^{15}\)\(:\left(\frac{2^6}{16^2}\right)^{10}\)
3 . A= \(\frac{-5.7^5+7^4}{7^6.10-2.7^5}\)
4 . B = \(\frac{10^3+5.10^2.5^3}{-13}\)
5 . A = \(\frac{\left(-0,03\right)^7.2^8}{\left(0,6\right)^7}\)
6 . B= \(\frac{3^7.16^3}{12^5.27^2}\)
7 . A = \(\frac{2^3.\left(0,5\right)^3.3^7}{2.\left(,5\right)^4.3^8}\)
8 . B = \(\left(\frac{-1}{3}\right)^3\)\(.\left(\frac{-1}{3}\right)^2\)\(.\left(\frac{-1}{3}\right)\)
Giúp mik nhé . mik cần ngay
\(\frac{3}{5}\left(\frac{5}{6}-\frac{10}{9}\right):\frac{1}{2}-\frac{9}{5}:\frac{18}{15}+\frac{28}{15}:\left(\frac{-7}{10}\right)\)
\(3\left(\frac{-2}{3}\right)^2-2\left(\frac{-1}{2}\right)^3-\left(-\frac{3}{4}\right)^0\)
Tính từng bước các phép tính trên
Tính gọn biểu thức :
a,-5.7^5+7^4:7^6.10-2.7^5
b,10^3+5.10^2+5^3:-13