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Can you solve by completing the square x2 plus 10x plus 220?

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No because the discriminant of the given quadratic expression is less than zero.
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Explain how to solve x2 plus 8x -2 equals 0 by completing the square?

x² + 8x -2 = 0 x² + 8x = 2 x² + 8x + (8/2)² = 2 + (8/2)² x² + 8x + 16 = 2 + 16 (x + 4)² = 18 x + 4 = ±√18 x = -4 ±√18 x = -4 + √18 or x = -4 - √18 if you are

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How do you solve x2 plus 6x - 2 equals 0 by completing the square?

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