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Simplifying 10x2 + -8x + 1 = 0 Reorder the terms: 1 + -8x + 10x2 = 0 Solving 1 + -8x + 10x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 10 the coefficient of the squared term: Divide each side by '10'. 0.1 + -0.8x + x2 = 0 Move the constant term to the right: Add '-0.1' to each side of the equation. 0.1 + -0.8x + -0.1 + x2 = 0 + -0.1 Reorder the terms: 0.1 + -0.1 + -0.8x + x2 = 0 + -0.1 Combine like terms: 0.1 + -0.1 = 0.0 0.0 + -0.8x + x2 = 0 + -0.1 -0.8x + x2 = 0 + -0.1 Combine like terms: 0 + -0.1 = -0.1 -0.8x + x2 = -0.1 The x term is -0.8x. Take half its coefficient (-0.4). Square it (0.16) and add it to both sides. Add '0.16' to each side of the equation. -0.8x + 0.16 + x2 = -0.1 + 0.16 Reorder the terms: 0.16 + -0.8x + x2 = -0.1 + 0.16 Combine like terms: -0.1 + 0.16 = 0.06 0.16 + -0.8x + x2 = 0.06 Factor a perfect square on the left side: (x + -0.4)(x + -0.4) = 0.06 Calculate the square root of the right side: 0.244948974 Break this problem into two subproblems by setting (x + -0.4) equal to 0.244948974 and -0.244948974.Subproblem 1
x + -0.4 = 0.244948974 Simplifying x + -0.4 = 0.244948974 Reorder the terms: -0.4 + x = 0.244948974 Solving -0.4 + x = 0.244948974 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x = 0.244948974 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x = 0.244948974 + 0.4 x = 0.244948974 + 0.4 Combine like terms: 0.244948974 + 0.4 = 0.644948974 x = 0.644948974 Simplifying x = 0.644948974Subproblem 2
x + -0.4 = -0.244948974 Simplifying x + -0.4 = -0.244948974 Reorder the terms: -0.4 + x = -0.244948974 Solving -0.4 + x = -0.244948974 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x = -0.244948974 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x = -0.244948974 + 0.4 x = -0.244948974 + 0.4 Combine like terms: -0.244948974 + 0.4 = 0.155051026 x = 0.155051026 Simplifying x = 0.155051026Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.644948974, 0.155051026}
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