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The square root of 1 more than twice a certain number is 5.

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find the number.?

basic-questions

asked Dec 13, 2014 in CALCULUS by anonymous

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1 Answer

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Let x be the number.

From the given data, the statement can be translated into the equation below.

√(1 + 2x) = 5

Squaring on each side.

1 + 2x = 25

Subtract 1 from each side.

2x = 25 - 1

2x = 24

Divide each side by 2.

x = 12.

Therefore, the number is 12.

answered Dec 13, 2014 by lilly Expert

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