Question

Tìm x

1/(6x-3²).3⁵⁼5.3⁷

2/8x-5.2³=(5.2)³-5³.2³

Answer 1

1/(6x-3²).3⁵⁼5.3⁷

   (6x-9)  = 5. 2187

   (6x-9) =  10935

   6x   = 10935 + 9  =10944

     x  = 10944 : 6 =1824

2/8x-5.2³=(5.2)³-5³.2³

/8x-5.8=1000-125.8

8x -40 = 0

8x = 40

x = 40 : 8 =5

Answer 2

1,  ( 6x-3^2).3^5=5.3^7

6x-3^2=5.3^7:3^5

6x-3^2=5.(3^7:3^5)

6x-9=5.3^2

6x-9=5.9

6x-9=45

6x=45+9

6x=54

x=54:6

x=9

Vậy x=9