The problem seems to be x2 - 7 = 2(5x + 1) or x2 - 10x - 9 = 0
The solution is 5 +- 5.83 or x = 10.83 or -.83 Take your choice!
Mariela S.
asked • 02/07/19If 7 is subtracted from a number squared, the result is twice the sum of 5 times the number and 1.
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