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Simplifying x(x + 5) = 144 Reorder the terms: x(5 + x) = 144 (5 * x + x * x) = 144 (5x + x2) = 144 Solving 5x + x2 = 144 Solving for variable 'x'. Reorder the terms: -144 + 5x + x2 = 144 + -144 Combine like terms: 144 + -144 = 0 -144 + 5x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '144' to each side of the equation. -144 + 5x + 144 + x2 = 0 + 144 Reorder the terms: -144 + 144 + 5x + x2 = 0 + 144 Combine like terms: -144 + 144 = 0 0 + 5x + x2 = 0 + 144 5x + x2 = 0 + 144 Combine like terms: 0 + 144 = 144 5x + x2 = 144 The x term is 5x. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5x + 6.25 + x2 = 144 + 6.25 Reorder the terms: 6.25 + 5x + x2 = 144 + 6.25 Combine like terms: 144 + 6.25 = 150.25 6.25 + 5x + x2 = 150.25 Factor a perfect square on the left side: (x + 2.5)(x + 2.5) = 150.25 Calculate the square root of the right side: 12.257650672 Break this problem into two subproblems by setting (x + 2.5) equal to 12.257650672 and -12.257650672.Subproblem 1
x + 2.5 = 12.257650672 Simplifying x + 2.5 = 12.257650672 Reorder the terms: 2.5 + x = 12.257650672 Solving 2.5 + x = 12.257650672 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 12.257650672 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 12.257650672 + -2.5 x = 12.257650672 + -2.5 Combine like terms: 12.257650672 + -2.5 = 9.757650672 x = 9.757650672 Simplifying x = 9.757650672Subproblem 2
x + 2.5 = -12.257650672 Simplifying x + 2.5 = -12.257650672 Reorder the terms: 2.5 + x = -12.257650672 Solving 2.5 + x = -12.257650672 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -12.257650672 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -12.257650672 + -2.5 x = -12.257650672 + -2.5 Combine like terms: -12.257650672 + -2.5 = -14.757650672 x = -14.757650672 Simplifying x = -14.757650672Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.757650672, -14.757650672}
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