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Simplifying 16x2 + -40x + 25 = 10 Reorder the terms: 25 + -40x + 16x2 = 10 Solving 25 + -40x + 16x2 = 10 Solving for variable 'x'. Reorder the terms: 25 + -10 + -40x + 16x2 = 10 + -10 Combine like terms: 25 + -10 = 15 15 + -40x + 16x2 = 10 + -10 Combine like terms: 10 + -10 = 0 15 + -40x + 16x2 = 0 Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. 0.9375 + -2.5x + x2 = 0 Move the constant term to the right: Add '-0.9375' to each side of the equation. 0.9375 + -2.5x + -0.9375 + x2 = 0 + -0.9375 Reorder the terms: 0.9375 + -0.9375 + -2.5x + x2 = 0 + -0.9375 Combine like terms: 0.9375 + -0.9375 = 0.0000 0.0000 + -2.5x + x2 = 0 + -0.9375 -2.5x + x2 = 0 + -0.9375 Combine like terms: 0 + -0.9375 = -0.9375 -2.5x + x2 = -0.9375 The x term is -2.5x. Take half its coefficient (-1.25). Square it (1.5625) and add it to both sides. Add '1.5625' to each side of the equation. -2.5x + 1.5625 + x2 = -0.9375 + 1.5625 Reorder the terms: 1.5625 + -2.5x + x2 = -0.9375 + 1.5625 Combine like terms: -0.9375 + 1.5625 = 0.625 1.5625 + -2.5x + x2 = 0.625 Factor a perfect square on the left side: (x + -1.25)(x + -1.25) = 0.625 Calculate the square root of the right side: 0.790569415 Break this problem into two subproblems by setting (x + -1.25) equal to 0.790569415 and -0.790569415.Subproblem 1
x + -1.25 = 0.790569415 Simplifying x + -1.25 = 0.790569415 Reorder the terms: -1.25 + x = 0.790569415 Solving -1.25 + x = 0.790569415 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = 0.790569415 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = 0.790569415 + 1.25 x = 0.790569415 + 1.25 Combine like terms: 0.790569415 + 1.25 = 2.040569415 x = 2.040569415 Simplifying x = 2.040569415Subproblem 2
x + -1.25 = -0.790569415 Simplifying x + -1.25 = -0.790569415 Reorder the terms: -1.25 + x = -0.790569415 Solving -1.25 + x = -0.790569415 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = -0.790569415 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = -0.790569415 + 1.25 x = -0.790569415 + 1.25 Combine like terms: -0.790569415 + 1.25 = 0.459430585 x = 0.459430585 Simplifying x = 0.459430585Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.040569415, 0.459430585}
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