Word Problem: Twice a number squared minus 3 is 47....

Mindy

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Feb 21, 2008
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Twice a number squared minus 3 is 47. What is the number?
 

TchrWill

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Jul 7, 2005
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Re: Word Problem

Twice a number squared minus 3 is 47. What is the number?

Let the number be x
Then, the number squared is x^2
Then, twice the number squared is 2x^2
Twice the number squared "minus 3" is -3
Twice the number squared minus 3 is 47

Therefore, *x*^2- * = **

THEN,.????
 
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