Question

let f(x)= x2 -2x +1,find f(1-√x)​

Answer 1

f(x)=x^2-16

To find f^{-1}(x), (the inverse of the function) you need to first replace the f(x) with y...

y=x^2-16

Then switch the x and the y.

x=y^2-16

Solve for y.

x+16=y^2

Take the square root of each side.

y= + or -$\sqrt{x} +16$

Answer 2

X=1

Step-by-step explanation:

f(X)=x2-2x+1

f(X)=0

x2-2x+1=0

(X-1)2=0

x-1=0

X=1