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Simplifying 2x2 + -2x + -45 = 0 Reorder the terms: -45 + -2x + 2x2 = 0 Solving -45 + -2x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -22.5 + -1x + x2 = 0 Move the constant term to the right: Add '22.5' to each side of the equation. -22.5 + -1x + 22.5 + x2 = 0 + 22.5 Reorder the terms: -22.5 + 22.5 + -1x + x2 = 0 + 22.5 Combine like terms: -22.5 + 22.5 = 0.0 0.0 + -1x + x2 = 0 + 22.5 -1x + x2 = 0 + 22.5 Combine like terms: 0 + 22.5 = 22.5 -1x + x2 = 22.5 The x term is -1x. 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. -1x + 0.25 + x2 = 22.5 + 0.25 Reorder the terms: 0.25 + -1x + x2 = 22.5 + 0.25 Combine like terms: 22.5 + 0.25 = 22.75 0.25 + -1x + x2 = 22.75 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = 22.75 Calculate the square root of the right side: 4.769696007 Break this problem into two subproblems by setting (x + -0.5) equal to 4.769696007 and -4.769696007.Subproblem 1
x + -0.5 = 4.769696007 Simplifying x + -0.5 = 4.769696007 Reorder the terms: -0.5 + x = 4.769696007 Solving -0.5 + x = 4.769696007 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 = 4.769696007 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 4.769696007 + 0.5 x = 4.769696007 + 0.5 Combine like terms: 4.769696007 + 0.5 = 5.269696007 x = 5.269696007 Simplifying x = 5.269696007Subproblem 2
x + -0.5 = -4.769696007 Simplifying x + -0.5 = -4.769696007 Reorder the terms: -0.5 + x = -4.769696007 Solving -0.5 + x = -4.769696007 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 = -4.769696007 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -4.769696007 + 0.5 x = -4.769696007 + 0.5 Combine like terms: -4.769696007 + 0.5 = -4.269696007 x = -4.269696007 Simplifying x = -4.269696007Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.269696007, -4.269696007}
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