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Simplifying 2t2 + -12t + -25 = 0 Reorder the terms: -25 + -12t + 2t2 = 0 Solving -25 + -12t + 2t2 = 0 Solving for variable 't'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -12.5 + -6t + t2 = 0 Move the constant term to the right: Add '12.5' to each side of the equation. -12.5 + -6t + 12.5 + t2 = 0 + 12.5 Reorder the terms: -12.5 + 12.5 + -6t + t2 = 0 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + -6t + t2 = 0 + 12.5 -6t + t2 = 0 + 12.5 Combine like terms: 0 + 12.5 = 12.5 -6t + t2 = 12.5 The t term is -6t. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6t + 9 + t2 = 12.5 + 9 Reorder the terms: 9 + -6t + t2 = 12.5 + 9 Combine like terms: 12.5 + 9 = 21.5 9 + -6t + t2 = 21.5 Factor a perfect square on the left side: (t + -3)(t + -3) = 21.5 Calculate the square root of the right side: 4.636809248 Break this problem into two subproblems by setting (t + -3) equal to 4.636809248 and -4.636809248.Subproblem 1
t + -3 = 4.636809248 Simplifying t + -3 = 4.636809248 Reorder the terms: -3 + t = 4.636809248 Solving -3 + t = 4.636809248 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + t = 4.636809248 + 3 Combine like terms: -3 + 3 = 0 0 + t = 4.636809248 + 3 t = 4.636809248 + 3 Combine like terms: 4.636809248 + 3 = 7.636809248 t = 7.636809248 Simplifying t = 7.636809248Subproblem 2
t + -3 = -4.636809248 Simplifying t + -3 = -4.636809248 Reorder the terms: -3 + t = -4.636809248 Solving -3 + t = -4.636809248 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + t = -4.636809248 + 3 Combine like terms: -3 + 3 = 0 0 + t = -4.636809248 + 3 t = -4.636809248 + 3 Combine like terms: -4.636809248 + 3 = -1.636809248 t = -1.636809248 Simplifying t = -1.636809248Solution
The solution to the problem is based on the solutions from the subproblems. t = {7.636809248, -1.636809248}
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