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densk [106]
3 years ago
11

When a number is multiplied by itself and 2 is added to it, the result is 227. What is the number?​

Mathematics
1 answer:
Ede4ka [16]3 years ago
7 0

Let number be x

\leadsto \sf {x}^{2} + 2 = 227

\\  \\

\leadsto \sf {x}^{2} = 227 - 2

\\  \\

\leadsto \sf {x}^{2} = 225

\\  \\

\leadsto \sf {x} =  \sqrt{225}

\\  \\

\leadsto \sf {x} =  \sqrt{15 \times 15}

\\  \\

\leadsto \sf {x} =  15

Number = 15

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