1.

If `496 xx 492 = x^(2) - 4 (x gt 0)` , then x = `"________"`.A. 495B. 494C. 493D. 496

Answer» Correct Answer - B
Given , `496 xx 492 = x^(2) - 4`.
`implies (424 + 2) (494-2) = x^(2) - 2^(2)`
`implies (494)^(2) - 2^(2) = x^(2) - 2^(2)`
`x^(2) = (494)^(2)`
`x = 494 ( x gt 0)`
Hence , the correct option is (b) .


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