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Simplifying 8t2 + -4t + -5 = 0 Reorder the terms: -5 + -4t + 8t2 = 0 Solving -5 + -4t + 8t2 = 0 Solving for variable 't'. Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -0.625 + -0.5t + t2 = 0 Move the constant term to the right: Add '0.625' to each side of the equation. -0.625 + -0.5t + 0.625 + t2 = 0 + 0.625 Reorder the terms: -0.625 + 0.625 + -0.5t + t2 = 0 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + -0.5t + t2 = 0 + 0.625 -0.5t + t2 = 0 + 0.625 Combine like terms: 0 + 0.625 = 0.625 -0.5t + t2 = 0.625 The t term is -0.5t. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5t + 0.0625 + t2 = 0.625 + 0.0625 Reorder the terms: 0.0625 + -0.5t + t2 = 0.625 + 0.0625 Combine like terms: 0.625 + 0.0625 = 0.6875 0.0625 + -0.5t + t2 = 0.6875 Factor a perfect square on the left side: (t + -0.25)(t + -0.25) = 0.6875 Calculate the square root of the right side: 0.829156198 Break this problem into two subproblems by setting (t + -0.25) equal to 0.829156198 and -0.829156198.Subproblem 1
t + -0.25 = 0.829156198 Simplifying t + -0.25 = 0.829156198 Reorder the terms: -0.25 + t = 0.829156198 Solving -0.25 + t = 0.829156198 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + t = 0.829156198 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + t = 0.829156198 + 0.25 t = 0.829156198 + 0.25 Combine like terms: 0.829156198 + 0.25 = 1.079156198 t = 1.079156198 Simplifying t = 1.079156198Subproblem 2
t + -0.25 = -0.829156198 Simplifying t + -0.25 = -0.829156198 Reorder the terms: -0.25 + t = -0.829156198 Solving -0.25 + t = -0.829156198 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + t = -0.829156198 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + t = -0.829156198 + 0.25 t = -0.829156198 + 0.25 Combine like terms: -0.829156198 + 0.25 = -0.579156198 t = -0.579156198 Simplifying t = -0.579156198Solution
The solution to the problem is based on the solutions from the subproblems. t = {1.079156198, -0.579156198}
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