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If using the method of completing the square to solve the quadratic equation x2 + 2x 31 = 0, which number would have to be added to "complete the square"?

If using the method of completing the square to solve the quadratic equation x2 + 2x 31 = 0, which number would have to be added to "complete the square"?
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2 votes
If using the method of completing the square to solve the quadratic equation

x2 + 2x 31 = 0, which number would have to be added to "complete the
square"?

User Cmii
by
9.4k points

1 Answer

2 votes

Answer:

3

Explanation:

User Ottodidakt
by
8.1k points
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