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Simplifying 2.3x2 + 2x + 4 = 0 Reorder the terms: 4 + 2x + 2.3x2 = 0 Solving 4 + 2x + 2.3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2.3 the coefficient of the squared term: Divide each side by '2.3'. 1.739130435 + 0.8695652174x + x2 = 0 Move the constant term to the right: Add '-1.739130435' to each side of the equation. 1.739130435 + 0.8695652174x + -1.739130435 + x2 = 0 + -1.739130435 Reorder the terms: 1.739130435 + -1.739130435 + 0.8695652174x + x2 = 0 + -1.739130435 Combine like terms: 1.739130435 + -1.739130435 = 0.000000000 0.000000000 + 0.8695652174x + x2 = 0 + -1.739130435 0.8695652174x + x2 = 0 + -1.739130435 Combine like terms: 0 + -1.739130435 = -1.739130435 0.8695652174x + x2 = -1.739130435 The x term is 0.8695652174x. Take half its coefficient (0.4347826087). Square it (0.1890359168) and add it to both sides. Add '0.1890359168' to each side of the equation. 0.8695652174x + 0.1890359168 + x2 = -1.739130435 + 0.1890359168 Reorder the terms: 0.1890359168 + 0.8695652174x + x2 = -1.739130435 + 0.1890359168 Combine like terms: -1.739130435 + 0.1890359168 = -1.5500945182 0.1890359168 + 0.8695652174x + x2 = -1.5500945182 Factor a perfect square on the left side: (x + 0.4347826087)(x + 0.4347826087) = -1.5500945182 Can't calculate square root of the right side. The solution to this equation could not be determined.
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