3 years ago

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

1 answer:

3 0

x^2 - (7 + 2x) = 0
x^2 - 2x - 7 = 0
Solve this using the quadratic equation, only the positive solution is wanted

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

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