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Simplifying 66 + 1x * 1x = 2x Reorder the terms for easier multiplication: 66 + 1 * 1x * x = 2x Multiply 1 * 1 66 + 1x * x = 2x Multiply x * x 66 + 1x2 = 2x Solving 66 + 1x2 = 2x Solving for variable 'x'. Reorder the terms: 66 + -2x + 1x2 = 2x + -2x Combine like terms: 2x + -2x = 0 66 + -2x + 1x2 = 0 Begin completing the square. Move the constant term to the right: Add '-66' to each side of the equation. 66 + -2x + -66 + x2 = 0 + -66 Reorder the terms: 66 + -66 + -2x + x2 = 0 + -66 Combine like terms: 66 + -66 = 0 0 + -2x + x2 = 0 + -66 -2x + x2 = 0 + -66 Combine like terms: 0 + -66 = -66 -2x + x2 = -66 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = -66 + 1 Reorder the terms: 1 + -2x + x2 = -66 + 1 Combine like terms: -66 + 1 = -65 1 + -2x + x2 = -65 Factor a perfect square on the left side: (x + -1)(x + -1) = -65 Can't calculate square root of the right side. The solution to this equation could not be determined.
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