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Simplifying 4(x + -5) * 11(x + -1) = 5 + -7(x + -2) Reorder the terms: 4(-5 + x) * 11(x + -1) = 5 + -7(x + -2) Reorder the terms: 4(-5 + x) * 11(-1 + x) = 5 + -7(x + -2) Reorder the terms for easier multiplication: 4 * 11(-5 + x)(-1 + x) = 5 + -7(x + -2) Multiply 4 * 11 44(-5 + x)(-1 + x) = 5 + -7(x + -2) Multiply (-5 + x) * (-1 + x) 44(-5(-1 + x) + x(-1 + x)) = 5 + -7(x + -2) 44((-1 * -5 + x * -5) + x(-1 + x)) = 5 + -7(x + -2) 44((5 + -5x) + x(-1 + x)) = 5 + -7(x + -2) 44(5 + -5x + (-1 * x + x * x)) = 5 + -7(x + -2) 44(5 + -5x + (-1x + x2)) = 5 + -7(x + -2) Combine like terms: -5x + -1x = -6x 44(5 + -6x + x2) = 5 + -7(x + -2) (5 * 44 + -6x * 44 + x2 * 44) = 5 + -7(x + -2) (220 + -264x + 44x2) = 5 + -7(x + -2) Reorder the terms: 220 + -264x + 44x2 = 5 + -7(-2 + x) 220 + -264x + 44x2 = 5 + (-2 * -7 + x * -7) 220 + -264x + 44x2 = 5 + (14 + -7x) Combine like terms: 5 + 14 = 19 220 + -264x + 44x2 = 19 + -7x Solving 220 + -264x + 44x2 = 19 + -7x Solving for variable 'x'. Reorder the terms: 220 + -19 + -264x + 7x + 44x2 = 19 + -7x + -19 + 7x Combine like terms: 220 + -19 = 201 201 + -264x + 7x + 44x2 = 19 + -7x + -19 + 7x Combine like terms: -264x + 7x = -257x 201 + -257x + 44x2 = 19 + -7x + -19 + 7x Reorder the terms: 201 + -257x + 44x2 = 19 + -19 + -7x + 7x Combine like terms: 19 + -19 = 0 201 + -257x + 44x2 = 0 + -7x + 7x 201 + -257x + 44x2 = -7x + 7x Combine like terms: -7x + 7x = 0 201 + -257x + 44x2 = 0 Begin completing the square. Divide all terms by 44 the coefficient of the squared term: Divide each side by '44'. 4.568181818 + -5.840909091x + x2 = 0 Move the constant term to the right: Add '-4.568181818' to each side of the equation. 4.568181818 + -5.840909091x + -4.568181818 + x2 = 0 + -4.568181818 Reorder the terms: 4.568181818 + -4.568181818 + -5.840909091x + x2 = 0 + -4.568181818 Combine like terms: 4.568181818 + -4.568181818 = 0.000000000 0.000000000 + -5.840909091x + x2 = 0 + -4.568181818 -5.840909091x + x2 = 0 + -4.568181818 Combine like terms: 0 + -4.568181818 = -4.568181818 -5.840909091x + x2 = -4.568181818 The x term is -5.840909091x. Take half its coefficient (-2.920454546). Square it (8.529054755) and add it to both sides. Add '8.529054755' to each side of the equation. -5.840909091x + 8.529054755 + x2 = -4.568181818 + 8.529054755 Reorder the terms: 8.529054755 + -5.840909091x + x2 = -4.568181818 + 8.529054755 Combine like terms: -4.568181818 + 8.529054755 = 3.960872937 8.529054755 + -5.840909091x + x2 = 3.960872937 Factor a perfect square on the left side: (x + -2.920454546)(x + -2.920454546) = 3.960872937 Calculate the square root of the right side: 1.990194196 Break this problem into two subproblems by setting (x + -2.920454546) equal to 1.990194196 and -1.990194196.Subproblem 1
x + -2.920454546 = 1.990194196 Simplifying x + -2.920454546 = 1.990194196 Reorder the terms: -2.920454546 + x = 1.990194196 Solving -2.920454546 + x = 1.990194196 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.920454546' to each side of the equation. -2.920454546 + 2.920454546 + x = 1.990194196 + 2.920454546 Combine like terms: -2.920454546 + 2.920454546 = 0.000000000 0.000000000 + x = 1.990194196 + 2.920454546 x = 1.990194196 + 2.920454546 Combine like terms: 1.990194196 + 2.920454546 = 4.910648742 x = 4.910648742 Simplifying x = 4.910648742Subproblem 2
x + -2.920454546 = -1.990194196 Simplifying x + -2.920454546 = -1.990194196 Reorder the terms: -2.920454546 + x = -1.990194196 Solving -2.920454546 + x = -1.990194196 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.920454546' to each side of the equation. -2.920454546 + 2.920454546 + x = -1.990194196 + 2.920454546 Combine like terms: -2.920454546 + 2.920454546 = 0.000000000 0.000000000 + x = -1.990194196 + 2.920454546 x = -1.990194196 + 2.920454546 Combine like terms: -1.990194196 + 2.920454546 = 0.93026035 x = 0.93026035 Simplifying x = 0.93026035Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.910648742, 0.93026035}
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