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Simplifying 8x2 + -80x + 177 = 0 Reorder the terms: 177 + -80x + 8x2 = 0 Solving 177 + -80x + 8x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. 22.125 + -10x + x2 = 0 Move the constant term to the right: Add '-22.125' to each side of the equation. 22.125 + -10x + -22.125 + x2 = 0 + -22.125 Reorder the terms: 22.125 + -22.125 + -10x + x2 = 0 + -22.125 Combine like terms: 22.125 + -22.125 = 0.000 0.000 + -10x + x2 = 0 + -22.125 -10x + x2 = 0 + -22.125 Combine like terms: 0 + -22.125 = -22.125 -10x + x2 = -22.125 The x term is -10x. Take half its coefficient (-5). Square it (25) and add it to both sides. Add '25' to each side of the equation. -10x + 25 + x2 = -22.125 + 25 Reorder the terms: 25 + -10x + x2 = -22.125 + 25 Combine like terms: -22.125 + 25 = 2.875 25 + -10x + x2 = 2.875 Factor a perfect square on the left side: (x + -5)(x + -5) = 2.875 Calculate the square root of the right side: 1.695582496 Break this problem into two subproblems by setting (x + -5) equal to 1.695582496 and -1.695582496.Subproblem 1
x + -5 = 1.695582496 Simplifying x + -5 = 1.695582496 Reorder the terms: -5 + x = 1.695582496 Solving -5 + x = 1.695582496 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 1.695582496 + 5 Combine like terms: -5 + 5 = 0 0 + x = 1.695582496 + 5 x = 1.695582496 + 5 Combine like terms: 1.695582496 + 5 = 6.695582496 x = 6.695582496 Simplifying x = 6.695582496Subproblem 2
x + -5 = -1.695582496 Simplifying x + -5 = -1.695582496 Reorder the terms: -5 + x = -1.695582496 Solving -5 + x = -1.695582496 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -1.695582496 + 5 Combine like terms: -5 + 5 = 0 0 + x = -1.695582496 + 5 x = -1.695582496 + 5 Combine like terms: -1.695582496 + 5 = 3.304417504 x = 3.304417504 Simplifying x = 3.304417504Solution
The solution to the problem is based on the solutions from the subproblems. x = {6.695582496, 3.304417504}
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