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hjlf
3 years ago
5

When the sum of 7 and twice a positive number is subtracted from the square of the​ number, 0 results. find the number?

Mathematics
1 answer:
Lilit [14]3 years ago
3 0
<span>x^2 - (7 + 2x) = 0
x^2 - 2x - 7 = 0
Solve this using the quadratic equation, only the positive solution is wanted</span>
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<u>Answer:</u>

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<u>Step-by-step explanation:</u>

We are given that a movie rental club charges a one time fee of $25 to join and $2 for every movie rented.

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