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Simplifying 4x2 + -2x + 1 = 30 Reorder the terms: 1 + -2x + 4x2 = 30 Solving 1 + -2x + 4x2 = 30 Solving for variable 'x'. Reorder the terms: 1 + -30 + -2x + 4x2 = 30 + -30 Combine like terms: 1 + -30 = -29 -29 + -2x + 4x2 = 30 + -30 Combine like terms: 30 + -30 = 0 -29 + -2x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -7.25 + -0.5x + x2 = 0 Move the constant term to the right: Add '7.25' to each side of the equation. -7.25 + -0.5x + 7.25 + x2 = 0 + 7.25 Reorder the terms: -7.25 + 7.25 + -0.5x + x2 = 0 + 7.25 Combine like terms: -7.25 + 7.25 = 0.00 0.00 + -0.5x + x2 = 0 + 7.25 -0.5x + x2 = 0 + 7.25 Combine like terms: 0 + 7.25 = 7.25 -0.5x + x2 = 7.25 The x term is -0.5x. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5x + 0.0625 + x2 = 7.25 + 0.0625 Reorder the terms: 0.0625 + -0.5x + x2 = 7.25 + 0.0625 Combine like terms: 7.25 + 0.0625 = 7.3125 0.0625 + -0.5x + x2 = 7.3125 Factor a perfect square on the left side: (x + -0.25)(x + -0.25) = 7.3125 Calculate the square root of the right side: 2.704163457 Break this problem into two subproblems by setting (x + -0.25) equal to 2.704163457 and -2.704163457.Subproblem 1
x + -0.25 = 2.704163457 Simplifying x + -0.25 = 2.704163457 Reorder the terms: -0.25 + x = 2.704163457 Solving -0.25 + x = 2.704163457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 2.704163457 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 2.704163457 + 0.25 x = 2.704163457 + 0.25 Combine like terms: 2.704163457 + 0.25 = 2.954163457 x = 2.954163457 Simplifying x = 2.954163457Subproblem 2
x + -0.25 = -2.704163457 Simplifying x + -0.25 = -2.704163457 Reorder the terms: -0.25 + x = -2.704163457 Solving -0.25 + x = -2.704163457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -2.704163457 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -2.704163457 + 0.25 x = -2.704163457 + 0.25 Combine like terms: -2.704163457 + 0.25 = -2.454163457 x = -2.454163457 Simplifying x = -2.454163457Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.954163457, -2.454163457}
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