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Simplifying 0 = 5t2 + 20t + 10 Reorder the terms: 0 = 10 + 20t + 5t2 Solving 0 = 10 + 20t + 5t2 Solving for variable 't'. Combine like terms: 0 + -10 = -10 -10 + -20t + -5t2 = 10 + 20t + 5t2 + -10 + -20t + -5t2 Reorder the terms: -10 + -20t + -5t2 = 10 + -10 + 20t + -20t + 5t2 + -5t2 Combine like terms: 10 + -10 = 0 -10 + -20t + -5t2 = 0 + 20t + -20t + 5t2 + -5t2 -10 + -20t + -5t2 = 20t + -20t + 5t2 + -5t2 Combine like terms: 20t + -20t = 0 -10 + -20t + -5t2 = 0 + 5t2 + -5t2 -10 + -20t + -5t2 = 5t2 + -5t2 Combine like terms: 5t2 + -5t2 = 0 -10 + -20t + -5t2 = 0 Factor out the Greatest Common Factor (GCF), '-5'. -5(2 + 4t + t2) = 0 Ignore the factor -5.Subproblem 1
Set the factor '(2 + 4t + t2)' equal to zero and attempt to solve: Simplifying 2 + 4t + t2 = 0 Solving 2 + 4t + t2 = 0 Begin completing the square. Move the constant term to the right: Add '-2' to each side of the equation. 2 + 4t + -2 + t2 = 0 + -2 Reorder the terms: 2 + -2 + 4t + t2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 4t + t2 = 0 + -2 4t + t2 = 0 + -2 Combine like terms: 0 + -2 = -2 4t + t2 = -2 The t term is 4t. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4t + 4 + t2 = -2 + 4 Reorder the terms: 4 + 4t + t2 = -2 + 4 Combine like terms: -2 + 4 = 2 4 + 4t + t2 = 2 Factor a perfect square on the left side: (t + 2)(t + 2) = 2 Calculate the square root of the right side: 1.414213562 Break this problem into two subproblems by setting (t + 2) equal to 1.414213562 and -1.414213562.Subproblem 1
t + 2 = 1.414213562 Simplifying t + 2 = 1.414213562 Reorder the terms: 2 + t = 1.414213562 Solving 2 + t = 1.414213562 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + t = 1.414213562 + -2 Combine like terms: 2 + -2 = 0 0 + t = 1.414213562 + -2 t = 1.414213562 + -2 Combine like terms: 1.414213562 + -2 = -0.585786438 t = -0.585786438 Simplifying t = -0.585786438Subproblem 2
t + 2 = -1.414213562 Simplifying t + 2 = -1.414213562 Reorder the terms: 2 + t = -1.414213562 Solving 2 + t = -1.414213562 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + t = -1.414213562 + -2 Combine like terms: 2 + -2 = 0 0 + t = -1.414213562 + -2 t = -1.414213562 + -2 Combine like terms: -1.414213562 + -2 = -3.414213562 t = -3.414213562 Simplifying t = -3.414213562Solution
The solution to the problem is based on the solutions from the subproblems. t = {-0.585786438, -3.414213562}Solution
t = {-0.585786438, -3.414213562}
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