3

3;4;5

\(\overline{36,75x4}\) < \(\dfrac{367544}{10000}\)

\(\overline{36,75x4}\) < 36,7544

         vì 36,7504 < 36,7514< 36,7524< 36,7534< 36,7544

           \(x\)      = 0; 1; 2; 3 

b, \(\overline{ab5,728}\) < \(\overline{ab5,7x4}\) < \(\overline{ab5,755}\) 

vì \(\overline{ab5,728}\) < \(\overline{ab5,734}\) < \(\overline{ab5,744}\) < \(\overline{ab5,754}\) < \(\overline{ab5,755}\)

vậy \(x\) = 3; 4; 5 

câu a: 36,75<x4<367544/10000

= 36,75<x*4<36,754

= x=9,1

câu b: 125,728;125,734;125,755

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a) 3,2,1,0

b) 125,728; 125,734; 125,755

k mk nhé

cn nhìu số mà

e chịu ak

a)   x(1-1)=1

<=>x.0=1

<=>0=1 ( vô nghiệm)

b)x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x= 54x

a)x=\(\infty\)

b) hình như là bằng 54x

X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X+X=X*26

26 ??? 

26 vvv

a, x.25=380125

x=380125:25

x=15205

b, (45,2+45.2)+2+x=2525255

45.2.2

45 . 2 + 2 + x + 45 . 2 = 2525255

=> 2 . (45 + 45 + 1) + x = 2525255

=> 182 + x = 2525255

=> x = 2525073

x . 25=380125

x=380125:25

x=15205

45.2+2+x+45.2=2525255

92+x+90=2525255

x+90=2525255-92

x+90=2525163

x=2525163-90

x=2525073