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Simplifying 8x2 + 36x + 36 = 64 Reorder the terms: 36 + 36x + 8x2 = 64 Solving 36 + 36x + 8x2 = 64 Solving for variable 'x'. Reorder the terms: 36 + -64 + 36x + 8x2 = 64 + -64 Combine like terms: 36 + -64 = -28 -28 + 36x + 8x2 = 64 + -64 Combine like terms: 64 + -64 = 0 -28 + 36x + 8x2 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-7 + 9x + 2x2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-7 + 9x + 2x2)' equal to zero and attempt to solve: Simplifying -7 + 9x + 2x2 = 0 Solving -7 + 9x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -3.5 + 4.5x + x2 = 0 Move the constant term to the right: Add '3.5' to each side of the equation. -3.5 + 4.5x + 3.5 + x2 = 0 + 3.5 Reorder the terms: -3.5 + 3.5 + 4.5x + x2 = 0 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + 4.5x + x2 = 0 + 3.5 4.5x + x2 = 0 + 3.5 Combine like terms: 0 + 3.5 = 3.5 4.5x + x2 = 3.5 The x term is 4.5x. Take half its coefficient (2.25). Square it (5.0625) and add it to both sides. Add '5.0625' to each side of the equation. 4.5x + 5.0625 + x2 = 3.5 + 5.0625 Reorder the terms: 5.0625 + 4.5x + x2 = 3.5 + 5.0625 Combine like terms: 3.5 + 5.0625 = 8.5625 5.0625 + 4.5x + x2 = 8.5625 Factor a perfect square on the left side: (x + 2.25)(x + 2.25) = 8.5625 Calculate the square root of the right side: 2.926174978 Break this problem into two subproblems by setting (x + 2.25) equal to 2.926174978 and -2.926174978.Subproblem 1
x + 2.25 = 2.926174978 Simplifying x + 2.25 = 2.926174978 Reorder the terms: 2.25 + x = 2.926174978 Solving 2.25 + x = 2.926174978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.25' to each side of the equation. 2.25 + -2.25 + x = 2.926174978 + -2.25 Combine like terms: 2.25 + -2.25 = 0.00 0.00 + x = 2.926174978 + -2.25 x = 2.926174978 + -2.25 Combine like terms: 2.926174978 + -2.25 = 0.676174978 x = 0.676174978 Simplifying x = 0.676174978Subproblem 2
x + 2.25 = -2.926174978 Simplifying x + 2.25 = -2.926174978 Reorder the terms: 2.25 + x = -2.926174978 Solving 2.25 + x = -2.926174978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.25' to each side of the equation. 2.25 + -2.25 + x = -2.926174978 + -2.25 Combine like terms: 2.25 + -2.25 = 0.00 0.00 + x = -2.926174978 + -2.25 x = -2.926174978 + -2.25 Combine like terms: -2.926174978 + -2.25 = -5.176174978 x = -5.176174978 Simplifying x = -5.176174978Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.676174978, -5.176174978}Solution
x = {0.676174978, -5.176174978}
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