Question

If f(x)=x−2x+1, then f(n+1) is equal to what?

Answer 1

Answer:

Step-by-step explanation:

f(x)=(x-2)(x+1)

putting x=n+1

f(n+1)=(n+1-2)(n+1+2)

=(n-1)(n+3)

=n²+3n-n-3

=n²+2n-3

Answer 2

Answer:

Step-by-step explanation:

f(x)=x^2−2x+1,

f[x] = [x-1]^2

f[n+1] = [n+1-1]^2

        =n^2