Question

Solve the equation by factoring.
c2 - 2c + 1 = 0

Answer 1

The only solution is c=1

Explanation:

c^2 - 2c + 1 = 0

What 2 numbers multiply to 1 and add to -2

-1 * -1 =1

-1 + -1 =-2

( c-1) (c-1)=0

Using the zero product property

c-1 =0 c-1 =0

c=1 c=1

The only solution is c=1