Q. If $(46^{2}) - (?^{2}) = 4398 - 3066,$ the value of z is:

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Solution

The correct option is B 28
$(46^{2}) - (x^{2}) = 4398 - 3066, x^{2} = 46^{2} - 4398 + 3066 = x^{2} = 784 = x = \sqrt{784} x = 28$

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