Question

expand the following 4z2-4z+1​

Answer 1

Step-by-step explanation:

4z²-4z+1

4z²-2z-2z+1

4z(2z-1)-1(2z-1)

(4z-1)(2z-1) ANSWER

Answer 2

Answer:1/2,1/2

Step-by-step explanation:

4z^2-4z+1=0

=4z^2-2z-2z+1

=2z (2z-1)-1 (2z-1)

=(2z-1)or (2z-1)

2z=1,2z=1

z=1/2,z=1/2