Question

Factorize :-z²-2z+1​

Answer 1

${z}^{2} - 2z + 1 \\ = z {}^{2} - z - z + 1 \\ = z(z - 1) - 1(z - 1) \\ = (z - 1)(z - 1 )= (z - 1 {)}^{2}$

Answer 2

Step-by-step explanation:

The answer is (z - 1) square ia the correct answers