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. \(\frac{18^6\div2^{11}\div9^3\times4^3}{32^2\div6^9\times3^6}\)
 

Tìm x thuộc Z, biết:

a. 1 + \(\left\{-2-[-3+\left(-4+\left|x\right|\right)]\right\}=1-2+[\left(-3-4\right)]\)

b. 34 + (9 - 21) = 3417 - (x + 3417)

c. x - \(\left\{55-[49+\left(-28-x\right)]\right\}=13-\left\{47+[25-\left(32-x\right)]\right\}\)

d. (15 - x) + (x - 12) = 7 - (-8 + x)

e. - 7 + \(\left|x-4\right|\) = - 3

f. 13 - \(|\)x + 5\(|\) = 13

g. \(|\)x + 1\(|\) > 2

h. \(|\)x + 2\(|\) ≤ 5

i. \(|\)x - 10\(|\) - (-12) = 4

\(TìmX\in Z\)

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 

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

Tìm \(x\in Z\):

a. \(2\times\left(x-5\right)-3\times\left(x-4\right)=\left(-6\right)+15\times\left(-3\right)\)

b.\(\left(2x-5\right)-7=22\)

c.\(\left(2\times\left|x\right|-6\right)\times11=44\)

d.\(\left|x+3\right|+\left|x+5\right|+\left|x+9\right|=4x\)

e.\(\left|x-1\right|+\left|x-5\right|=4\)

g.\(x+\left(x+1\right)+\left(x+2\right)+.......+100=0\)

a) \(\left|2x\frac{1}{3}\right|+\frac{5}{6}=1\)

b)\(\frac{17}{2}-\left|2x-\frac{3}{4}\right|=-\frac{7}{4}\)

c) \(\frac{2}{3}x-\frac{3}{2}x=\frac{5}{12}\)

d) \(\frac{2}{5}+\frac{3}{5}.\left(3x-3,7\right)=-\frac{53}{10}\)

e) \(\frac{7}{9}:\left(2+\frac{3}{4}x\right)+\frac{5}{9}=\frac{23}{27}\)

f) \(\left(2\frac{4}{5}x-50\right):\frac{2}{3}=51\)

g)\(\left(x+\frac{1}{2}\right).\left(\frac{2}{3}-2x\right)=0\)

h)\(x.3\frac{1}{4}+\left(-\frac{7}{6}\right).x-1\frac{2}{3}=\frac{5}{12}\)

i)\(\frac{6}{2}=\frac{-5+x}{15}\)

k)\(\frac{1}{21}+\frac{1}{28}+\frac{1}{36}+...+\frac{2}{x\left(x+1\right)}=\frac{2}{9}\)

\(a.2\left(x-5\right)-3\left(x+7\right)=14\)

\(b.5\left(x-6\right)-2\left(x+3\right)=12\)

\(c.3\left(x-4\right)-\left(8-x\right)=12\)

\(d.-7\left(3x-5\right)+2\left(7x-14\right)=28\)

\(e.5\left(3-2x\right)+5\left(x-4\right)=6-4x\)

\(f.-5\left(2-x\right)+4\left(x-3\right)=10x-15\)

\(g.2\left(4x-8\right)-7\left(3+x\right)=|-4|\left(3-2\right)\)

\(h.8\left(x-|-7|\right)-6\left(x-2\right)=|-8|.6-50\)

cứ từ từ mà giải cũng đc

1,tìm x

a.\(3^x\)=81

b.\(5^{x+2}\)=125

c.\(2^3\)*\(2^{x-1}\)=64

d. 7*\(7^{n+1}\)=343

e.\(\left(x+3\right)^5\)=243

f.\(\left(2x-3\right)^6\)=64

g.\(\left(x-6\right)^3\)=\(\left(x-6\right)^2\)

h.\(\left\{\left[\left(2x+14\right):2^2-3\right]:3\right\}\)-1=0

i.\(\left\{\left[\left(x:3+17\right):10+3\cdot2^4\right]:10\right\}=5\)

2,tính

a.\(7^{3^1}\)         b.\(7^{1^3}\)      c.\(6^{1^{2^{3^4}}}\)       d.\(2017^{2^{0^{1^0}}}\)      e.\(6^3:6^2-6^2:6\)    f.\(\frac{11\cdot2^{22}\cdot3^7-9^{15}}{\left(2\cdot3^{14}\right)^2}\)