we are given

For finding inverse function , we do following steps
step-1:
Set f(x)=y

step-2:
Switch x and y

step-3:
now, we can solve for y

Multiply both sides by 9y-2



Add both sides by 2x


now, we can divide both sides by 9x

so, we get inverse function as
................Answer
- 4/5 (9x-20)-3x=4/5x-6
Solution: x = 2
28 is not a cube, and 63 is not a square. The simplest form is the form you have.
![\sqrt[3]{28}-\sqrt{63}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B28%7D-%5Csqrt%7B63%7D)
12/21 in its simplest form is 4/7.
To find this out we need to divide the numerator and denominator by the GCF of 12 and 21 which is 3.
12/21
12 ÷ 3 = 4
21 ÷ 3 = 7
4/7
12/21 in its simplest form is 4/7.
12/21 = 4/7