SOLUTION: 120 less than the square of a number is the same as twice the number

SOLUTION: 120 less than the square of a number is the same as twice the number

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Question 838535: 120 less than the square of a number is the same as twice the number
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
120 less than the square of a number is the same as twice the number

add -2x to each side

We can factor

Possible values for x are 12 and -10
For 12 ,

This looks good so 12 works.
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