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Simplifying 3.6x2 + -8x = -16 Reorder the terms: -8x + 3.6x2 = -16 Solving -8x + 3.6x2 = -16 Solving for variable 'x'. Reorder the terms: 16 + -8x + 3.6x2 = -16 + 16 Combine like terms: -16 + 16 = 0 16 + -8x + 3.6x2 = 0 Begin completing the square. Divide all terms by 3.6 the coefficient of the squared term: Divide each side by '3.6'. 4.444444444 + -2.222222222x + x2 = 0 Move the constant term to the right: Add '-4.444444444' to each side of the equation. 4.444444444 + -2.222222222x + -4.444444444 + x2 = 0 + -4.444444444 Reorder the terms: 4.444444444 + -4.444444444 + -2.222222222x + x2 = 0 + -4.444444444 Combine like terms: 4.444444444 + -4.444444444 = 0.000000000 0.000000000 + -2.222222222x + x2 = 0 + -4.444444444 -2.222222222x + x2 = 0 + -4.444444444 Combine like terms: 0 + -4.444444444 = -4.444444444 -2.222222222x + x2 = -4.444444444 The x term is -2.222222222x. Take half its coefficient (-1.111111111). Square it (1.234567901) and add it to both sides. Add '1.234567901' to each side of the equation. -2.222222222x + 1.234567901 + x2 = -4.444444444 + 1.234567901 Reorder the terms: 1.234567901 + -2.222222222x + x2 = -4.444444444 + 1.234567901 Combine like terms: -4.444444444 + 1.234567901 = -3.209876543 1.234567901 + -2.222222222x + x2 = -3.209876543 Factor a perfect square on the left side: (x + -1.111111111)(x + -1.111111111) = -3.209876543 Can't calculate square root of the right side. The solution to this equation could not be determined.
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