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Simplifying X2 + -6X + 39 = 0 Reorder the terms: 39 + -6X + X2 = 0 Solving 39 + -6X + X2 = 0 Solving for variable 'X'. Begin completing the square. Move the constant term to the right: Add '-39' to each side of the equation. 39 + -6X + -39 + X2 = 0 + -39 Reorder the terms: 39 + -39 + -6X + X2 = 0 + -39 Combine like terms: 39 + -39 = 0 0 + -6X + X2 = 0 + -39 -6X + X2 = 0 + -39 Combine like terms: 0 + -39 = -39 -6X + X2 = -39 The X term is -6X. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6X + 9 + X2 = -39 + 9 Reorder the terms: 9 + -6X + X2 = -39 + 9 Combine like terms: -39 + 9 = -30 9 + -6X + X2 = -30 Factor a perfect square on the left side: (X + -3)(X + -3) = -30 Can't calculate square root of the right side. The solution to this equation could not be determined.
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