Question
If `sqrt(18 xx 14 xx x)` = 84, then `x` equals :
Answer: Option C
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`sqrt(18 xx 14 xx x)` = 84 `hArr` 18 x 14 x `x` = 84 x 84 `hArr` `x` = `(84xx84)/(18xx14) = 28.`
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