125*98-125*46-52*25

=125*(98-46)-52*25

=125*52-52*25

=52*(125-25)

=52*100

=5200

tick nha Namiko

= 5200 ạ, mong đc k

420      2

210      7

30        3

10        2

5          5

1

420=2².3.5.7

420=2².3.5.7

a). 5^x = 125

=>5^x = 5³

=> x = 3

b) 3^2x = 81

=> 3^2x = 3⁴

=> 2x = 4

=> x = 2

c). 5^2x-3 – 2.5² = 5² .3

=>5^2x: 5³ = 5² .3 + 2.5²

=>5^2x: 5³ = 5² .5

=>5^2x = 5² .5.5³

=>5^2x = 5⁶

=> 2x = 6

=> x=3

a) 5x = 125

x = 125 : 5

x = 25

b) 32x = 81

x = 81 : 32

x = 81/ 32

c) 52x - 3 - 2.52 = 52.3

52x - 3 - 104 = 156

x - 3 - 104 = 156 : 52

x - 3 - 104 = 3

x - 3 = 3 + 104

x - 3 = 107

x = 107 + 3

x = 110

Ko chắc lắm , sai thì Sorry nhé .

123

duyệt đi

61000

-1400000

2600

Cách làm là...........bấm máy tính hjhj

125.98-125.46-52.25

=25.5.98-25.5.46-52.25

=25.490-25.230-52.25

=25.(490-230-52)

=25.208

=5200

Tick mình nha bạn

125 . 98 - 125 . 46 - 52 . 25

= 125 . 98 - 125 . 46 - 10,4 . 125

= 125. ( 98 - 46 - 10,4 )

= 125 . 41,6

= 5200

(4x-3)^3= -125

(4x-3)^3=(-5)^3

4x-3=-5

4x=-2

x=-1/2

 \(\left(4x-3\right)^3=-125\)

\(\left(4x-3\right)^3=\left(-5\right)^3\)

\(4x-3=-5\)

\(x=-\frac{1}{2}\)

125,98- 125,48 = 0,5 - 52,25 = -51,75

(4x-3)x=-125

4x.x-3x=-125

5x-3x=-125

2x=-125

x=-125:2

x=-62,5

62,5