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Simplifying 4x2 + 9 = 51 + -1x Reorder the terms: 9 + 4x2 = 51 + -1x Solving 9 + 4x2 = 51 + -1x Solving for variable 'x'. Reorder the terms: 9 + -51 + x + 4x2 = 51 + -1x + -51 + x Combine like terms: 9 + -51 = -42 -42 + x + 4x2 = 51 + -1x + -51 + x Reorder the terms: -42 + x + 4x2 = 51 + -51 + -1x + x Combine like terms: 51 + -51 = 0 -42 + x + 4x2 = 0 + -1x + x -42 + x + 4x2 = -1x + x Combine like terms: -1x + x = 0 -42 + x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -10.5 + 0.25x + x2 = 0 Move the constant term to the right: Add '10.5' to each side of the equation. -10.5 + 0.25x + 10.5 + x2 = 0 + 10.5 Reorder the terms: -10.5 + 10.5 + 0.25x + x2 = 0 + 10.5 Combine like terms: -10.5 + 10.5 = 0.0 0.0 + 0.25x + x2 = 0 + 10.5 0.25x + x2 = 0 + 10.5 Combine like terms: 0 + 10.5 = 10.5 0.25x + x2 = 10.5 The x term is x. 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. 0.25x + 0.25 + x2 = 10.5 + 0.25 Reorder the terms: 0.25 + 0.25x + x2 = 10.5 + 0.25 Combine like terms: 10.5 + 0.25 = 10.75 0.25 + 0.25x + x2 = 10.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 10.75 Calculate the square root of the right side: 3.278719262 Break this problem into two subproblems by setting (x + 0.5) equal to 3.278719262 and -3.278719262.Subproblem 1
x + 0.5 = 3.278719262 Simplifying x + 0.5 = 3.278719262 Reorder the terms: 0.5 + x = 3.278719262 Solving 0.5 + x = 3.278719262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 3.278719262 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 3.278719262 + -0.5 x = 3.278719262 + -0.5 Combine like terms: 3.278719262 + -0.5 = 2.778719262 x = 2.778719262 Simplifying x = 2.778719262Subproblem 2
x + 0.5 = -3.278719262 Simplifying x + 0.5 = -3.278719262 Reorder the terms: 0.5 + x = -3.278719262 Solving 0.5 + x = -3.278719262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -3.278719262 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -3.278719262 + -0.5 x = -3.278719262 + -0.5 Combine like terms: -3.278719262 + -0.5 = -3.778719262 x = -3.778719262 Simplifying x = -3.778719262Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.778719262, -3.778719262}
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