What will be the value of $z$ , if $(z - 2)^{2} - 36 = 0$

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-8

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Solution

The correct option is A 8
$(z - 2)^{2} - 36 = 0 (z - 2) 2 = 36 (z - 2) = \pm 6 z = 2 + 6 o r 2 - 6 z = 8 o r - 4$

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