Given function:
![f(x)=4 x^(3)=c](https://img.qammunity.org/2021/formulas/mathematics/high-school/z83sdr4olpeae6o59s6940rq00hcas2n8e.png)
To find:
The input if the output is 32.
The output if the input is 4.
Solution:
Input is x and output is c.
Substitute c = 32 in f(x).
![4 x^(3)=32](https://img.qammunity.org/2021/formulas/mathematics/high-school/9wdl1tocn0bu4almacaka0b3rrxf6xw5xt.png)
Divide by 4 on both sides, we get
![x^(3)=8](https://img.qammunity.org/2021/formulas/mathematics/high-school/3yr2eemb7wvlcg1065svz3g0rksoxoyqwr.png)
![x^(3)=2^3](https://img.qammunity.org/2021/formulas/mathematics/high-school/7bo604vet5910hskz7srcl6shjhnv59xih.png)
Taking cube root on both sides.
![x=2](https://img.qammunity.org/2021/formulas/mathematics/middle-school/l44oth01qqbnuop6qxtvmqlzuv7kvr7xrb.png)
The input is 2 if the output is 32.
Substitute x = 4 in f(x).
![4 (4)^(3)=c](https://img.qammunity.org/2021/formulas/mathematics/high-school/38n3zhvsd709j8sakkmxlw16jt8qgm5bwf.png)
![4 (64)=c](https://img.qammunity.org/2021/formulas/mathematics/high-school/zadph30rh8byt87ay1jsmjjyrng4qoo9p5.png)
![256=c](https://img.qammunity.org/2021/formulas/mathematics/high-school/61y8vyajqgr2i4ehkh16t8olzeur1r6jqq.png)
The output is 256 if the input is 4.