Question

when 5 is added to the square of a number gives 216. what is number​

Answer 1

Step-by-step explanation:

$let \: the \: number \: be \: x \\ \\ according \: t o \: the \: question... \\ \\ 5 + {x}^{2} = 216 \\ \\ {x}^{2} = 211 \\ \\ x = \sqrt{211}$

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