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PilotLPTM [1.2K]
4 years ago
8

Let ​ x2+18x=44

Mathematics
1 answer:
maksim [4K]4 years ago
7 0
Add the square of half the x-coefficient. 9² = 81.

  x² + 18x + 81 = 44 + 81

Depending on where your boxes are, you may have to add the two numbers on the right to get = 125.
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