Question

If f( x)=x²-2x+1,what is the value of
-2​

Answer 1

Answer:

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

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

4 -4+1

= 1

Answer 2

x²-2x+1 = 0

=> x(x-2) = -1

=> (x-2) = -1

x

=> -2 = -1 -x or -(x²+1)

x x