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Simplifying -16x2 + 45x + -3 = 0 Reorder the terms: -3 + 45x + -16x2 = 0 Solving -3 + 45x + -16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -16 the coefficient of the squared term: Divide each side by '-16'. 0.1875 + -2.8125x + x2 = 0 Move the constant term to the right: Add '-0.1875' to each side of the equation. 0.1875 + -2.8125x + -0.1875 + x2 = 0 + -0.1875 Reorder the terms: 0.1875 + -0.1875 + -2.8125x + x2 = 0 + -0.1875 Combine like terms: 0.1875 + -0.1875 = 0.0000 0.0000 + -2.8125x + x2 = 0 + -0.1875 -2.8125x + x2 = 0 + -0.1875 Combine like terms: 0 + -0.1875 = -0.1875 -2.8125x + x2 = -0.1875 The x term is -2.8125x. Take half its coefficient (-1.40625). Square it (1.977539063) and add it to both sides. Add '1.977539063' to each side of the equation. -2.8125x + 1.977539063 + x2 = -0.1875 + 1.977539063 Reorder the terms: 1.977539063 + -2.8125x + x2 = -0.1875 + 1.977539063 Combine like terms: -0.1875 + 1.977539063 = 1.790039063 1.977539063 + -2.8125x + x2 = 1.790039063 Factor a perfect square on the left side: (x + -1.40625)(x + -1.40625) = 1.790039063 Calculate the square root of the right side: 1.337923414 Break this problem into two subproblems by setting (x + -1.40625) equal to 1.337923414 and -1.337923414.Subproblem 1
x + -1.40625 = 1.337923414 Simplifying x + -1.40625 = 1.337923414 Reorder the terms: -1.40625 + x = 1.337923414 Solving -1.40625 + x = 1.337923414 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.40625' to each side of the equation. -1.40625 + 1.40625 + x = 1.337923414 + 1.40625 Combine like terms: -1.40625 + 1.40625 = 0.00000 0.00000 + x = 1.337923414 + 1.40625 x = 1.337923414 + 1.40625 Combine like terms: 1.337923414 + 1.40625 = 2.744173414 x = 2.744173414 Simplifying x = 2.744173414Subproblem 2
x + -1.40625 = -1.337923414 Simplifying x + -1.40625 = -1.337923414 Reorder the terms: -1.40625 + x = -1.337923414 Solving -1.40625 + x = -1.337923414 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.40625' to each side of the equation. -1.40625 + 1.40625 + x = -1.337923414 + 1.40625 Combine like terms: -1.40625 + 1.40625 = 0.00000 0.00000 + x = -1.337923414 + 1.40625 x = -1.337923414 + 1.40625 Combine like terms: -1.337923414 + 1.40625 = 0.068326586 x = 0.068326586 Simplifying x = 0.068326586Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.744173414, 0.068326586}
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