Question

5n cubed - 230 = 90
please help . I don't understand.

Answer 1

so 5n^3 - 230=90 first you add 230 to both sides so you get 5n^3=320 than you divide 5 from both sides so you get n^3=64 so you take the cube root of both sides to get the answer... n=4

Answer 2

`5n^3-230=90`

`5n^3=320`

`n^3= (320)/(5)`

`n^3=64`

`n= \sqrt[3]{64}`

`n=4`