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Simplifying 5(5x + 6) * 3(8x + -8) + 43 = 0 Reorder the terms: 5(6 + 5x) * 3(8x + -8) + 43 = 0 Reorder the terms: 5(6 + 5x) * 3(-8 + 8x) + 43 = 0 Reorder the terms for easier multiplication: 5 * 3(6 + 5x)(-8 + 8x) + 43 = 0 Multiply 5 * 3 15(6 + 5x)(-8 + 8x) + 43 = 0 Multiply (6 + 5x) * (-8 + 8x) 15(6(-8 + 8x) + 5x * (-8 + 8x)) + 43 = 0 15((-8 * 6 + 8x * 6) + 5x * (-8 + 8x)) + 43 = 0 15((-48 + 48x) + 5x * (-8 + 8x)) + 43 = 0 15(-48 + 48x + (-8 * 5x + 8x * 5x)) + 43 = 0 15(-48 + 48x + (-40x + 40x2)) + 43 = 0 Combine like terms: 48x + -40x = 8x 15(-48 + 8x + 40x2) + 43 = 0 (-48 * 15 + 8x * 15 + 40x2 * 15) + 43 = 0 (-720 + 120x + 600x2) + 43 = 0 Reorder the terms: -720 + 43 + 120x + 600x2 = 0 Combine like terms: -720 + 43 = -677 -677 + 120x + 600x2 = 0 Solving -677 + 120x + 600x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 600 the coefficient of the squared term: Divide each side by '600'. -1.128333333 + 0.2x + x2 = 0.00 Move the constant term to the right: Add '1.128333333' to each side of the equation. -1.128333333 + 0.2x + 1.128333333 + x2 = 0.00 + 1.128333333 Reorder the terms: -1.128333333 + 1.128333333 + 0.2x + x2 = 0.00 + 1.128333333 Combine like terms: -1.128333333 + 1.128333333 = 0.000000000 0.000000000 + 0.2x + x2 = 0.00 + 1.128333333 0.2x + x2 = 0.00 + 1.128333333 Combine like terms: 0.00 + 1.128333333 = 1.128333333 0.2x + x2 = 1.128333333 The x term is 0.2x. Take half its coefficient (0.1). Square it (0.01) and add it to both sides. Add '0.01' to each side of the equation. 0.2x + 0.01 + x2 = 1.128333333 + 0.01 Reorder the terms: 0.01 + 0.2x + x2 = 1.128333333 + 0.01 Combine like terms: 1.128333333 + 0.01 = 1.138333333 0.01 + 0.2x + x2 = 1.138333333 Factor a perfect square on the left side: (x + 0.1)(x + 0.1) = 1.138333333 Calculate the square root of the right side: 1.066927051 Break this problem into two subproblems by setting (x + 0.1) equal to 1.066927051 and -1.066927051.Subproblem 1
x + 0.1 = 1.066927051 Simplifying x + 0.1 = 1.066927051 Reorder the terms: 0.1 + x = 1.066927051 Solving 0.1 + x = 1.066927051 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1' to each side of the equation. 0.1 + -0.1 + x = 1.066927051 + -0.1 Combine like terms: 0.1 + -0.1 = 0.0 0.0 + x = 1.066927051 + -0.1 x = 1.066927051 + -0.1 Combine like terms: 1.066927051 + -0.1 = 0.966927051 x = 0.966927051 Simplifying x = 0.966927051Subproblem 2
x + 0.1 = -1.066927051 Simplifying x + 0.1 = -1.066927051 Reorder the terms: 0.1 + x = -1.066927051 Solving 0.1 + x = -1.066927051 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1' to each side of the equation. 0.1 + -0.1 + x = -1.066927051 + -0.1 Combine like terms: 0.1 + -0.1 = 0.0 0.0 + x = -1.066927051 + -0.1 x = -1.066927051 + -0.1 Combine like terms: -1.066927051 + -0.1 = -1.166927051 x = -1.166927051 Simplifying x = -1.166927051Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.966927051, -1.166927051}
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