Question

4.(x + 5)3 - 7 = 101

Answer 1

x = 4?

Answer 2

x=4?

Answer 3

4(x + 5)3 - 7 = 101
=> 4.(x+5).3 = 108
=> 4.(x+5) = 36
=> x+5 = 9
=> x = 4

Answer 4

`4(x+5).3-7=101`

`12(x+5)=101+7=108`

`x+5=108:12=9`

`x=9-5=4`

Answer 5

4.(x + 5)3 - 7 = 101

4.(x + 5)3  = 101 + 7

4.(x + 5)3  = 108

4.(x + 5) = 108 : 3

4.(x + 5) = 36

x + 5 = 9

x = 4

Answer 6

4.(x + 5)3 - 7 = 101

4.(x + 5). 3    = 101 + 7

4.(x + 5). 3    = 108

   (x + 5).3     = 108 : 4

   (x + 5). 3    = 27

   (x + 5)        = 27 : 3

    x + 5         = 9

    x               = 9 - 5

    x               = 4

 

 

Answer 7

4 . (x + 5) 3 - 7 = 101

       4 .(x+ 5) 3  = 101 + 7

       4 .(x+ 5) 3  = 108

        4 . ( x + 5) = 108 : 3

          4 .(x+5)   = 36

               x + 5  = 36 : 4

               x + 5   = 9

                       x = 9 - 5

                       x = 4

 vậy x = 4