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Simplifying x2 + -1.5x + -1.7 = 0 Reorder the terms: -1.7 + -1.5x + x2 = 0 Solving -1.7 + -1.5x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '1.7' to each side of the equation. -1.7 + -1.5x + 1.7 + x2 = 0 + 1.7 Reorder the terms: -1.7 + 1.7 + -1.5x + x2 = 0 + 1.7 Combine like terms: -1.7 + 1.7 = 0.0 0.0 + -1.5x + x2 = 0 + 1.7 -1.5x + x2 = 0 + 1.7 Combine like terms: 0 + 1.7 = 1.7 -1.5x + x2 = 1.7 The x term is -1.5x. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5x + 0.5625 + x2 = 1.7 + 0.5625 Reorder the terms: 0.5625 + -1.5x + x2 = 1.7 + 0.5625 Combine like terms: 1.7 + 0.5625 = 2.2625 0.5625 + -1.5x + x2 = 2.2625 Factor a perfect square on the left side: (x + -0.75)(x + -0.75) = 2.2625 Calculate the square root of the right side: 1.504160896 Break this problem into two subproblems by setting (x + -0.75) equal to 1.504160896 and -1.504160896.Subproblem 1
x + -0.75 = 1.504160896 Simplifying x + -0.75 = 1.504160896 Reorder the terms: -0.75 + x = 1.504160896 Solving -0.75 + x = 1.504160896 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 1.504160896 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 1.504160896 + 0.75 x = 1.504160896 + 0.75 Combine like terms: 1.504160896 + 0.75 = 2.254160896 x = 2.254160896 Simplifying x = 2.254160896Subproblem 2
x + -0.75 = -1.504160896 Simplifying x + -0.75 = -1.504160896 Reorder the terms: -0.75 + x = -1.504160896 Solving -0.75 + x = -1.504160896 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -1.504160896 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -1.504160896 + 0.75 x = -1.504160896 + 0.75 Combine like terms: -1.504160896 + 0.75 = -0.754160896 x = -0.754160896 Simplifying x = -0.754160896Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.254160896, -0.754160896}
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