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Simplifying 6x2 = 9x + 4 Reorder the terms: 6x2 = 4 + 9x Solving 6x2 = 4 + 9x Solving for variable 'x'. Reorder the terms: -4 + -9x + 6x2 = 4 + 9x + -4 + -9x Reorder the terms: -4 + -9x + 6x2 = 4 + -4 + 9x + -9x Combine like terms: 4 + -4 = 0 -4 + -9x + 6x2 = 0 + 9x + -9x -4 + -9x + 6x2 = 9x + -9x Combine like terms: 9x + -9x = 0 -4 + -9x + 6x2 = 0 Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. -0.6666666667 + -1.5x + x2 = 0 Move the constant term to the right: Add '0.6666666667' to each side of the equation. -0.6666666667 + -1.5x + 0.6666666667 + x2 = 0 + 0.6666666667 Reorder the terms: -0.6666666667 + 0.6666666667 + -1.5x + x2 = 0 + 0.6666666667 Combine like terms: -0.6666666667 + 0.6666666667 = 0.0000000000 0.0000000000 + -1.5x + x2 = 0 + 0.6666666667 -1.5x + x2 = 0 + 0.6666666667 Combine like terms: 0 + 0.6666666667 = 0.6666666667 -1.5x + x2 = 0.6666666667 The x term is -1.5x. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5x + 0.5625 + x2 = 0.6666666667 + 0.5625 Reorder the terms: 0.5625 + -1.5x + x2 = 0.6666666667 + 0.5625 Combine like terms: 0.6666666667 + 0.5625 = 1.2291666667 0.5625 + -1.5x + x2 = 1.2291666667 Factor a perfect square on the left side: (x + -0.75)(x + -0.75) = 1.2291666667 Calculate the square root of the right side: 1.108677891 Break this problem into two subproblems by setting (x + -0.75) equal to 1.108677891 and -1.108677891.Subproblem 1
x + -0.75 = 1.108677891 Simplifying x + -0.75 = 1.108677891 Reorder the terms: -0.75 + x = 1.108677891 Solving -0.75 + x = 1.108677891 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 1.108677891 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 1.108677891 + 0.75 x = 1.108677891 + 0.75 Combine like terms: 1.108677891 + 0.75 = 1.858677891 x = 1.858677891 Simplifying x = 1.858677891Subproblem 2
x + -0.75 = -1.108677891 Simplifying x + -0.75 = -1.108677891 Reorder the terms: -0.75 + x = -1.108677891 Solving -0.75 + x = -1.108677891 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -1.108677891 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -1.108677891 + 0.75 x = -1.108677891 + 0.75 Combine like terms: -1.108677891 + 0.75 = -0.358677891 x = -0.358677891 Simplifying x = -0.358677891Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.858677891, -0.358677891}
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