a. \(\frac{3^2\times64^2-12^2\times16^2\times19+51\times33}{3+6+9+...+96+99}\)
b. \(\frac{6^3\times9^7\times4^3-16^2\times81^4}{\left(24\times3\right)^2}\)
c. \(\frac{21\times5^{21}\times5^8-25^{13}}{\left(4\times5^{14}\right)^2}\)
d. \(\frac{81^4\times3^{10}\times27^5\div3^{12}}{9^9\div9^3\times243^3}\)
e. \(\frac{18^6\div2^{11}\div9^3\times4^3}{32^2\div6^9\times3^6}\)
cho \(a=2^3\times3;b=2\times3^2\times5^2;c=2^2\times3^4\times5^2\) khi do UCLN(a;b;c)=
\(TìmX\in Z\)
a,\(8⋮\left(x-2\right),\left(x-2\right)⋮32,\left(x-2\right)⋮48\)VÀ 0<x<100
b,\(\left(x-6\right)^2=9\)
c,\(21⋮\left(2.x+5\right)\)
d,IxI=3
e,\(4^{2x-6}=1\)
f,\(2^{x-1}=16\)
g,\(5< 5^x< 125\)
H,\(5^{x+1}=125\)
I,\(5^{2x-3}-2\times5^2=5^2\times3\)
Giúp mình với
Tìm x:
\(2,5^2\times3^2+\left[2,5^3-\left(5,x+4\right)\times5\right]:\left(2^2\times3\times5\right)=453\)
\(\frac{2^5\times7+2^5}{2^5\times5^2-2^5\times3}\)
Help me!!!
\(\frac{2}{1\times3}+\frac{2}{3\times5}+\frac{2}{5\times7}+.....+\frac{2}{x\times\left(x+2\right)}=\frac{2015}{2016}\)
1. viết các tích sau dưới dạng lũy thừa.
\(a,3^5\times5^6\times45\)
\(b,2^8\times4^5\times9^9\)
\(c,(2^3\times3^5\times5^7)^{10}\times12^{20}\)
\(d,18^{20}\times45^5\times5^{25}\times8^{10}\)
\(e,(x^2\times y)^5\times(x^2\times y^2)^7\times(x\times y^2)^6\times x^3\)
\(f,2^7\times3^8\times4^9\times9^8\)
AI NHANH TAY MÌNH TICK CHO
a,\(\frac{3^{10}\times(-5)^{21}}{\left(-5\right)^{20}\times3^{12}}\)
b,\(\frac{\left(-11\right)^5\times13^7}{11^5\times13^8}\)
c,\(\frac{2^{10}\times3^{10}-2^{10}\times3^9}{2^9\times3^{10}}\)
d,\(\frac{5^{11}\times7^{12}+5^{11}\times7^{11}}{5^{12}\times7^{12}+9\times5^{11}\times7^{11}}\)
Bài trên là bài rút gon phân số
\(c,(2^3\times3^5\times5^7)^{10}\times12^{20}\)
