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For positive integer \(x,\) what is the units digit of \(x^2?\)
(1) The units digit of \((x+1)^2\) is \(9.\)
(2) The units digit of \((x-1)^2\) is \(5.\)
Answer: B
Source: Veritas Prep
(1) The units digit of \((x+1)^2\) is \(9.\)
(2) The units digit of \((x-1)^2\) is \(5.\)
Answer: B
Source: Veritas Prep
