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Simplifying (x4 + -1x2) = -144 Reorder the terms: (-1x2 + x4) = -144 Remove parenthesis around (-1x2 + x4) -1x2 + x4 = -144 Solving -1x2 + x4 = -144 Solving for variable 'x'. Reorder the terms: 144 + -1x2 + x4 = -144 + 144 Combine like terms: -144 + 144 = 0 144 + -1x2 + x4 = 0 Begin completing the square. Move the constant term to the right: Add '-144' to each side of the equation. 144 + -1x2 + -144 + x4 = 0 + -144 Reorder the terms: 144 + -144 + -1x2 + x4 = 0 + -144 Combine like terms: 144 + -144 = 0 0 + -1x2 + x4 = 0 + -144 -1x2 + x4 = 0 + -144 Combine like terms: 0 + -144 = -144 -1x2 + x4 = -144 The x term is -1x2. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x2 + 0.25 + x4 = -144 + 0.25 Reorder the terms: 0.25 + -1x2 + x4 = -144 + 0.25 Combine like terms: -144 + 0.25 = -143.75 0.25 + -1x2 + x4 = -143.75 Factor a perfect square on the left side: (x2 + -0.5)(x2 + -0.5) = -143.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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