12 x 125 x 24 x 50

= (12 x 50) x (125 x 24)

= 600 x 3000

= 1800000.

(Tíck cho mình với nhé!)

12x125x24x50

=1500x24x50

=36000x50

=1800000

\(\text{12 x 125 x 24 x 50}=1800000\)

a) 125.3+125.125.6

=125.3+125.750

=125.(3+750)

=125.753

=94125

b) (245.99+245)-(145.101-145)

=(245.(99+1))-(145.(101-1))

=245.100-145.100

=(245-145).100

=100.100

=10000

c) 154.(28+52)-45.(26+54)

=154.80-45.80

=(154-45).80

=109.80

=8720

a) 125x3+125+125x6

=125x(3+1+6)

=125x10

=1250

b) (245x99+245)-(145x101-145)

=(245x99+245)-(145x100)

=(245x100)-14500

=24500-14500

10000

c) 154x80-45x80

=80x(145-45)

=80x100

=8000

a, 125 x 3 + 125 x 125 x 6

=125 x 3 + 125 x 750

=125 x( 3+750)

=125 x753

=94125

b, ( 245 x 99 + 245 ) - ( 145 x 101 - 145 )

=[245 x ( 99+1 )] - [145 x ( 101-1 )]

=( 245 x 100 ) - ( 145 x 100 )

=24500 - 14500

=10 000

c, 154 x ( 28 + 52 ) - 45 x ( 26 + 54 )

=154 x 80 - 45 x 80

=(154-45)x80

=109 x80

=8720

( 125 + x ) : x = 6

125 : x + x : x =6

125 : x + 1 = 6

125 : x = 6 + 1

125 : x = 7

x = 125 : 7

x = 125/7

\(\Leftrightarrow y\cdot52=104\cdot6\)

hay y=12

Lời giải:

$\frac{125+x}{x}=6$

$125+x=6x$
$125=6x-x=5x$

$x=125:5=25$

2 x 4 x 6 x 8 x 50 x 25 x 125

= (2 x 50 ) x ( 4 x 25 ) x ( 125 x 8 ) x 6

= 100 x 100 x 1000 x 6

= 60000000

= 60 000 000 

15 x 6 x 4 x 125 x 8

= (15 x 4) x (125 x 8) x 6

= 60 x 1000 x 6

= 60000 x 6

= 360000

15 x6x4x125x8

= (15x4)x6x(125x8)

= 60x6 x 1000

= 360 x 1000

= 360 000

\(12.62.3+6^2.38-125:25\\ =36.62+36.38-5\\ =36.\left(62+38\right)-5\\ =36.100-5\\ =3600-5\\ =3595.\)

\(12\cdot62\cdot3+6^2\cdot38-125:25\)

\(=12\cdot62\cdot3+36\cdot38-5\)

\(=2232+1368-5\)

\(=3595\)

=> 125 - |x| = -6

|x| = 125 + 6 = 131

Vì x âm => x = -131 

/-125/-/x/=-6

=>125-/x/=-6

=>/x/=125-(-6)=125+6=131

=>x=131 hoặc cx=-131

|-125|-|x|=(-6)

125-|x|=(-6)

|x|=125-(-6)

|x|=131

=>x=+131