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Simplifying (5x + 6)(x + -3) = 6 Reorder the terms: (6 + 5x)(x + -3) = 6 Reorder the terms: (6 + 5x)(-3 + x) = 6 Multiply (6 + 5x) * (-3 + x) (6(-3 + x) + 5x * (-3 + x)) = 6 ((-3 * 6 + x * 6) + 5x * (-3 + x)) = 6 ((-18 + 6x) + 5x * (-3 + x)) = 6 (-18 + 6x + (-3 * 5x + x * 5x)) = 6 (-18 + 6x + (-15x + 5x2)) = 6 Combine like terms: 6x + -15x = -9x (-18 + -9x + 5x2) = 6 Solving -18 + -9x + 5x2 = 6 Solving for variable 'x'. Reorder the terms: -18 + -6 + -9x + 5x2 = 6 + -6 Combine like terms: -18 + -6 = -24 -24 + -9x + 5x2 = 6 + -6 Combine like terms: 6 + -6 = 0 -24 + -9x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -4.8 + -1.8x + x2 = 0 Move the constant term to the right: Add '4.8' to each side of the equation. -4.8 + -1.8x + 4.8 + x2 = 0 + 4.8 Reorder the terms: -4.8 + 4.8 + -1.8x + x2 = 0 + 4.8 Combine like terms: -4.8 + 4.8 = 0.0 0.0 + -1.8x + x2 = 0 + 4.8 -1.8x + x2 = 0 + 4.8 Combine like terms: 0 + 4.8 = 4.8 -1.8x + x2 = 4.8 The x term is -1.8x. Take half its coefficient (-0.9). Square it (0.81) and add it to both sides. Add '0.81' to each side of the equation. -1.8x + 0.81 + x2 = 4.8 + 0.81 Reorder the terms: 0.81 + -1.8x + x2 = 4.8 + 0.81 Combine like terms: 4.8 + 0.81 = 5.61 0.81 + -1.8x + x2 = 5.61 Factor a perfect square on the left side: (x + -0.9)(x + -0.9) = 5.61 Calculate the square root of the right side: 2.368543856 Break this problem into two subproblems by setting (x + -0.9) equal to 2.368543856 and -2.368543856.Subproblem 1
x + -0.9 = 2.368543856 Simplifying x + -0.9 = 2.368543856 Reorder the terms: -0.9 + x = 2.368543856 Solving -0.9 + x = 2.368543856 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9' to each side of the equation. -0.9 + 0.9 + x = 2.368543856 + 0.9 Combine like terms: -0.9 + 0.9 = 0.0 0.0 + x = 2.368543856 + 0.9 x = 2.368543856 + 0.9 Combine like terms: 2.368543856 + 0.9 = 3.268543856 x = 3.268543856 Simplifying x = 3.268543856Subproblem 2
x + -0.9 = -2.368543856 Simplifying x + -0.9 = -2.368543856 Reorder the terms: -0.9 + x = -2.368543856 Solving -0.9 + x = -2.368543856 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9' to each side of the equation. -0.9 + 0.9 + x = -2.368543856 + 0.9 Combine like terms: -0.9 + 0.9 = 0.0 0.0 + x = -2.368543856 + 0.9 x = -2.368543856 + 0.9 Combine like terms: -2.368543856 + 0.9 = -1.468543856 x = -1.468543856 Simplifying x = -1.468543856Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.268543856, -1.468543856}
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