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Simplifying 3x + 5 = 2(2x + -1)(x + -3) Reorder the terms: 5 + 3x = 2(2x + -1)(x + -3) Reorder the terms: 5 + 3x = 2(-1 + 2x)(x + -3) Reorder the terms: 5 + 3x = 2(-1 + 2x)(-3 + x) Multiply (-1 + 2x) * (-3 + x) 5 + 3x = 2(-1(-3 + x) + 2x * (-3 + x)) 5 + 3x = 2((-3 * -1 + x * -1) + 2x * (-3 + x)) 5 + 3x = 2((3 + -1x) + 2x * (-3 + x)) 5 + 3x = 2(3 + -1x + (-3 * 2x + x * 2x)) 5 + 3x = 2(3 + -1x + (-6x + 2x2)) Combine like terms: -1x + -6x = -7x 5 + 3x = 2(3 + -7x + 2x2) 5 + 3x = (3 * 2 + -7x * 2 + 2x2 * 2) 5 + 3x = (6 + -14x + 4x2) Solving 5 + 3x = 6 + -14x + 4x2 Solving for variable 'x'. Reorder the terms: 5 + -6 + 3x + 14x + -4x2 = 6 + -14x + 4x2 + -6 + 14x + -4x2 Combine like terms: 5 + -6 = -1 -1 + 3x + 14x + -4x2 = 6 + -14x + 4x2 + -6 + 14x + -4x2 Combine like terms: 3x + 14x = 17x -1 + 17x + -4x2 = 6 + -14x + 4x2 + -6 + 14x + -4x2 Reorder the terms: -1 + 17x + -4x2 = 6 + -6 + -14x + 14x + 4x2 + -4x2 Combine like terms: 6 + -6 = 0 -1 + 17x + -4x2 = 0 + -14x + 14x + 4x2 + -4x2 -1 + 17x + -4x2 = -14x + 14x + 4x2 + -4x2 Combine like terms: -14x + 14x = 0 -1 + 17x + -4x2 = 0 + 4x2 + -4x2 -1 + 17x + -4x2 = 4x2 + -4x2 Combine like terms: 4x2 + -4x2 = 0 -1 + 17x + -4x2 = 0 Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. 0.25 + -4.25x + x2 = 0 Move the constant term to the right: Add '-0.25' to each side of the equation. 0.25 + -4.25x + -0.25 + x2 = 0 + -0.25 Reorder the terms: 0.25 + -0.25 + -4.25x + x2 = 0 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + -4.25x + x2 = 0 + -0.25 -4.25x + x2 = 0 + -0.25 Combine like terms: 0 + -0.25 = -0.25 -4.25x + x2 = -0.25 The x term is -4.25x. Take half its coefficient (-2.125). Square it (4.515625) and add it to both sides. Add '4.515625' to each side of the equation. -4.25x + 4.515625 + x2 = -0.25 + 4.515625 Reorder the terms: 4.515625 + -4.25x + x2 = -0.25 + 4.515625 Combine like terms: -0.25 + 4.515625 = 4.265625 4.515625 + -4.25x + x2 = 4.265625 Factor a perfect square on the left side: (x + -2.125)(x + -2.125) = 4.265625 Calculate the square root of the right side: 2.065338955 Break this problem into two subproblems by setting (x + -2.125) equal to 2.065338955 and -2.065338955.Subproblem 1
x + -2.125 = 2.065338955 Simplifying x + -2.125 = 2.065338955 Reorder the terms: -2.125 + x = 2.065338955 Solving -2.125 + x = 2.065338955 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = 2.065338955 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = 2.065338955 + 2.125 x = 2.065338955 + 2.125 Combine like terms: 2.065338955 + 2.125 = 4.190338955 x = 4.190338955 Simplifying x = 4.190338955Subproblem 2
x + -2.125 = -2.065338955 Simplifying x + -2.125 = -2.065338955 Reorder the terms: -2.125 + x = -2.065338955 Solving -2.125 + x = -2.065338955 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = -2.065338955 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = -2.065338955 + 2.125 x = -2.065338955 + 2.125 Combine like terms: -2.065338955 + 2.125 = 0.059661045 x = 0.059661045 Simplifying x = 0.059661045Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.190338955, 0.059661045}
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