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Simplifying t2 + 4t + -4 = 0 Reorder the terms: -4 + 4t + t2 = 0 Solving -4 + 4t + t2 = 0 Solving for variable 't'. Begin completing the square. Move the constant term to the right: Add '4' to each side of the equation. -4 + 4t + 4 + t2 = 0 + 4 Reorder the terms: -4 + 4 + 4t + t2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 4t + t2 = 0 + 4 4t + t2 = 0 + 4 Combine like terms: 0 + 4 = 4 4t + t2 = 4 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 = 4 + 4 Reorder the terms: 4 + 4t + t2 = 4 + 4 Combine like terms: 4 + 4 = 8 4 + 4t + t2 = 8 Factor a perfect square on the left side: (t + 2)(t + 2) = 8 Calculate the square root of the right side: 2.828427125 Break this problem into two subproblems by setting (t + 2) equal to 2.828427125 and -2.828427125.Subproblem 1
t + 2 = 2.828427125 Simplifying t + 2 = 2.828427125 Reorder the terms: 2 + t = 2.828427125 Solving 2 + t = 2.828427125 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 = 2.828427125 + -2 Combine like terms: 2 + -2 = 0 0 + t = 2.828427125 + -2 t = 2.828427125 + -2 Combine like terms: 2.828427125 + -2 = 0.828427125 t = 0.828427125 Simplifying t = 0.828427125Subproblem 2
t + 2 = -2.828427125 Simplifying t + 2 = -2.828427125 Reorder the terms: 2 + t = -2.828427125 Solving 2 + t = -2.828427125 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 = -2.828427125 + -2 Combine like terms: 2 + -2 = 0 0 + t = -2.828427125 + -2 t = -2.828427125 + -2 Combine like terms: -2.828427125 + -2 = -4.828427125 t = -4.828427125 Simplifying t = -4.828427125Solution
The solution to the problem is based on the solutions from the subproblems. t = {0.828427125, -4.828427125}
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