Question

Find the inverse of the function.

f(x) = 2x3 - 4

Answer 1

@hartnn

Answer 2

@Hero

Answer 3

so, y = \(2x^3-4\)
can you isolate x from there ?

start by adding 4 on both sides

Answer 4

Okay i have that, then what?

Answer 5

then divide both sides by 2

Answer 6

the take cube root of both sides

Answer 7

x+4/2 sqrt 3?

Answer 8

sqrt 3 ?

oh u mean \(\huge \sqrt[3]{\dfrac{x+4}{2}}\)
?

Answer 9

yes!
is that correct?

Answer 10

absolutely :)

Answer 11

Thanks so much!

Answer 12

welcome ^_^