Question

Find the possible value or values of z in the quadratic equation z2 – 4z + 4 = 0. A. z =√ 2 + 2, z = −√ 2 + 2 B. z = 10, z = 6 C. z = 2 D. z = 2√ 2 + 2, z = −√ 2 + 2

Answer 1

Answer:

z=2

Step-by-step explanation:

z2 - 4z + 4=0

z2 - 2z - 2z + 4 = 0

z(z-2) -2(z-2)=0

(z-2) (z-2) = 0

z=0

hope it helps!!!