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Simplifying (-1x + 4)(x + -3) = -1 Reorder the terms: (4 + -1x)(x + -3) = -1 Reorder the terms: (4 + -1x)(-3 + x) = -1 Multiply (4 + -1x) * (-3 + x) (4(-3 + x) + -1x * (-3 + x)) = -1 ((-3 * 4 + x * 4) + -1x * (-3 + x)) = -1 ((-12 + 4x) + -1x * (-3 + x)) = -1 (-12 + 4x + (-3 * -1x + x * -1x)) = -1 (-12 + 4x + (3x + -1x2)) = -1 Combine like terms: 4x + 3x = 7x (-12 + 7x + -1x2) = -1 Solving -12 + 7x + -1x2 = -1 Solving for variable 'x'. Reorder the terms: -12 + 1 + 7x + -1x2 = -1 + 1 Combine like terms: -12 + 1 = -11 -11 + 7x + -1x2 = -1 + 1 Combine like terms: -1 + 1 = 0 -11 + 7x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 11 + -7x + x2 = 0 Move the constant term to the right: Add '-11' to each side of the equation. 11 + -7x + -11 + x2 = 0 + -11 Reorder the terms: 11 + -11 + -7x + x2 = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -7x + x2 = 0 + -11 -7x + x2 = 0 + -11 Combine like terms: 0 + -11 = -11 -7x + x2 = -11 The x term is -7x. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7x + 12.25 + x2 = -11 + 12.25 Reorder the terms: 12.25 + -7x + x2 = -11 + 12.25 Combine like terms: -11 + 12.25 = 1.25 12.25 + -7x + x2 = 1.25 Factor a perfect square on the left side: (x + -3.5)(x + -3.5) = 1.25 Calculate the square root of the right side: 1.118033989 Break this problem into two subproblems by setting (x + -3.5) equal to 1.118033989 and -1.118033989.Subproblem 1
x + -3.5 = 1.118033989 Simplifying x + -3.5 = 1.118033989 Reorder the terms: -3.5 + x = 1.118033989 Solving -3.5 + x = 1.118033989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 1.118033989 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 1.118033989 + 3.5 x = 1.118033989 + 3.5 Combine like terms: 1.118033989 + 3.5 = 4.618033989 x = 4.618033989 Simplifying x = 4.618033989Subproblem 2
x + -3.5 = -1.118033989 Simplifying x + -3.5 = -1.118033989 Reorder the terms: -3.5 + x = -1.118033989 Solving -3.5 + x = -1.118033989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -1.118033989 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -1.118033989 + 3.5 x = -1.118033989 + 3.5 Combine like terms: -1.118033989 + 3.5 = 2.381966011 x = 2.381966011 Simplifying x = 2.381966011Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.618033989, 2.381966011}
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