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Find the possible value or values of z in the quadratic equation z2 – 4z + 4 = 0. A. z = 10, z = 6 B. z = 2 2 + 2, z = 2 + 2 C. z = 2 D. z = 2 + 2, z = 2 + 2
z^2 – 4z + 4 = 0 ; z^2 – 2z - 2z + 4 = 0 ; z(z -2) -2(z -2) = 0 ; (z-2)(z-2) =0 ; z = 2 , 2.
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Asked 2/8/2019 12:14:00 PM
Updated 1/13/2021 11:55:56 PM
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z^2 – 4z + 4 = 0 ; z^2 – 2z - 2z + 4 = 0 ; z(z -2) -2(z -2) = 0 ; (z-2)(z-2) =0 ; z = 2 , 2.
Added 1/13/2021 11:55:56 PM
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