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Simplifying 12x + -4 = 2x2 + 13 Reorder the terms: -4 + 12x = 2x2 + 13 Reorder the terms: -4 + 12x = 13 + 2x2 Solving -4 + 12x = 13 + 2x2 Solving for variable 'x'. Reorder the terms: -4 + -13 + 12x + -2x2 = 13 + 2x2 + -13 + -2x2 Combine like terms: -4 + -13 = -17 -17 + 12x + -2x2 = 13 + 2x2 + -13 + -2x2 Reorder the terms: -17 + 12x + -2x2 = 13 + -13 + 2x2 + -2x2 Combine like terms: 13 + -13 = 0 -17 + 12x + -2x2 = 0 + 2x2 + -2x2 -17 + 12x + -2x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 -17 + 12x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. 8.5 + -6x + x2 = 0 Move the constant term to the right: Add '-8.5' to each side of the equation. 8.5 + -6x + -8.5 + x2 = 0 + -8.5 Reorder the terms: 8.5 + -8.5 + -6x + x2 = 0 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + -6x + x2 = 0 + -8.5 -6x + x2 = 0 + -8.5 Combine like terms: 0 + -8.5 = -8.5 -6x + x2 = -8.5 The x term is -6x. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6x + 9 + x2 = -8.5 + 9 Reorder the terms: 9 + -6x + x2 = -8.5 + 9 Combine like terms: -8.5 + 9 = 0.5 9 + -6x + x2 = 0.5 Factor a perfect square on the left side: (x + -3)(x + -3) = 0.5 Calculate the square root of the right side: 0.707106781 Break this problem into two subproblems by setting (x + -3) equal to 0.707106781 and -0.707106781.Subproblem 1
x + -3 = 0.707106781 Simplifying x + -3 = 0.707106781 Reorder the terms: -3 + x = 0.707106781 Solving -3 + x = 0.707106781 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 0.707106781 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0.707106781 + 3 x = 0.707106781 + 3 Combine like terms: 0.707106781 + 3 = 3.707106781 x = 3.707106781 Simplifying x = 3.707106781Subproblem 2
x + -3 = -0.707106781 Simplifying x + -3 = -0.707106781 Reorder the terms: -3 + x = -0.707106781 Solving -3 + x = -0.707106781 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -0.707106781 + 3 Combine like terms: -3 + 3 = 0 0 + x = -0.707106781 + 3 x = -0.707106781 + 3 Combine like terms: -0.707106781 + 3 = 2.292893219 x = 2.292893219 Simplifying x = 2.292893219Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.707106781, 2.292893219}
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