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Simplifying (10x + -9) + -1(-1x2 + 22x) = 0 Reorder the terms: (-9 + 10x) + -1(-1x2 + 22x) = 0 Remove parenthesis around (-9 + 10x) -9 + 10x + -1(-1x2 + 22x) = 0 Reorder the terms: -9 + 10x + -1(22x + -1x2) = 0 -9 + 10x + (22x * -1 + -1x2 * -1) = 0 -9 + 10x + (-22x + 1x2) = 0 Combine like terms: 10x + -22x = -12x -9 + -12x + 1x2 = 0 Solving -9 + -12x + 1x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '9' to each side of the equation. -9 + -12x + 9 + x2 = 0 + 9 Reorder the terms: -9 + 9 + -12x + x2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -12x + x2 = 0 + 9 -12x + x2 = 0 + 9 Combine like terms: 0 + 9 = 9 -12x + x2 = 9 The x term is -12x. Take half its coefficient (-6). Square it (36) and add it to both sides. Add '36' to each side of the equation. -12x + 36 + x2 = 9 + 36 Reorder the terms: 36 + -12x + x2 = 9 + 36 Combine like terms: 9 + 36 = 45 36 + -12x + x2 = 45 Factor a perfect square on the left side: (x + -6)(x + -6) = 45 Calculate the square root of the right side: 6.708203933 Break this problem into two subproblems by setting (x + -6) equal to 6.708203933 and -6.708203933.Subproblem 1
x + -6 = 6.708203933 Simplifying x + -6 = 6.708203933 Reorder the terms: -6 + x = 6.708203933 Solving -6 + x = 6.708203933 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 6.708203933 + 6 Combine like terms: -6 + 6 = 0 0 + x = 6.708203933 + 6 x = 6.708203933 + 6 Combine like terms: 6.708203933 + 6 = 12.708203933 x = 12.708203933 Simplifying x = 12.708203933Subproblem 2
x + -6 = -6.708203933 Simplifying x + -6 = -6.708203933 Reorder the terms: -6 + x = -6.708203933 Solving -6 + x = -6.708203933 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -6.708203933 + 6 Combine like terms: -6 + 6 = 0 0 + x = -6.708203933 + 6 x = -6.708203933 + 6 Combine like terms: -6.708203933 + 6 = -0.708203933 x = -0.708203933 Simplifying x = -0.708203933Solution
The solution to the problem is based on the solutions from the subproblems. x = {12.708203933, -0.708203933}
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