\(\frac{3^4.5-3^6}{3^4.13+3^4}=\frac{3^4.\left(5-3^2\right)}{3^4.\left(13+1\right)}=\frac{5-9}{14}=-\frac{4}{14}=-\frac{2}{7}\)
\(\frac{3^4.5-3^6}{3^4.13+3^4}=\frac{3^4.\left(5-3^2\right)}{3^4.\left(13+1\right)}=\frac{5-9}{14}=-\frac{4}{14}=-\frac{2}{7}\)
rút gọn r quy đồng mẫu các ps
\(\frac{2^5.7+2^5}{2^5.5^2-2^5.3}va\frac{3^4.5-3^6}{3^4.13+3^4}\)
Thực hiện phép tính :
\(|1,5-\sqrt{4}|.0,(3)-\sqrt{\frac{16}{25}}.\frac{1}{3}+\left(\frac{2^5.5^3+10^3}{3.2^4.5^3-5^4}\right).\frac{1}{3}\)
BÀI 1: a, M = \(\frac{4^6.9^5+120.6^9}{8^4.13^{12}-6^{11}}\)
b, N = \(\left(-\frac{3}{4}+\frac{5}{13}\right):\frac{2}{7}-\left(2\frac{1}{4}+\frac{8}{13}\right):\frac{2}{7}\)
\(\frac{15^5.10^5}{6^6.25^6}\)
2.\(\frac{\left(5^4.5^3\right)^3}{125^4}\)
A=3/4.5/9+6/7:4/3-1 và 2/5:1 và 1/3 tính giá trị của biểu thức
\(\frac{\frac{1^7}{5^7}.5^7+\frac{9^3}{4^3}:\frac{3^3}{16^3}}{2^4.5^2+129.2}\)
TÌM SỐ HỮU TỶ X BIẾT :
3^2.5^4.2.13^7- 3^2.5^4.13^6.x=0
\(B=\frac{2^{12}.3^5-4^6.9^2}{\left(2^2.6\right)^6+8^4.3^5}-\frac{5^{10}.7^3-25^5.49^2}{\left(125.7\right)^3+5^9.14^3}\)
\(C=\frac{1^2}{1.2}.\frac{2^2}{2.3}.\frac{3^2}{3.4}.\frac{4^2}{4.5}\)
\(D=\frac{2}{3.5}+\frac{2}{5.7}+\frac{2}{7.9}+...+\frac{2}{97.99}\)
Thực hiện phép tính
\(\dfrac{27^3.11+9^5.5}{3^9.2^4}\)
\(\dfrac{5^8+2^2.25^4+2^3.125^3-15^4.5^4}{4^2.625^2}\)
\(\dfrac{4^5.9^4-2.6^9}{2^{10}.3^8+6^8.20}\)
Giúp mik