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Simplifying t(t + 5) = 2t + 7 Reorder the terms: t(5 + t) = 2t + 7 (5 * t + t * t) = 2t + 7 (5t + t2) = 2t + 7 Reorder the terms: 5t + t2 = 7 + 2t Solving 5t + t2 = 7 + 2t Solving for variable 't'. Reorder the terms: -7 + 5t + -2t + t2 = 7 + 2t + -7 + -2t Combine like terms: 5t + -2t = 3t -7 + 3t + t2 = 7 + 2t + -7 + -2t Reorder the terms: -7 + 3t + t2 = 7 + -7 + 2t + -2t Combine like terms: 7 + -7 = 0 -7 + 3t + t2 = 0 + 2t + -2t -7 + 3t + t2 = 2t + -2t Combine like terms: 2t + -2t = 0 -7 + 3t + t2 = 0 Begin completing the square. Move the constant term to the right: Add '7' to each side of the equation. -7 + 3t + 7 + t2 = 0 + 7 Reorder the terms: -7 + 7 + 3t + t2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 3t + t2 = 0 + 7 3t + t2 = 0 + 7 Combine like terms: 0 + 7 = 7 3t + t2 = 7 The t term is 3t. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3t + 2.25 + t2 = 7 + 2.25 Reorder the terms: 2.25 + 3t + t2 = 7 + 2.25 Combine like terms: 7 + 2.25 = 9.25 2.25 + 3t + t2 = 9.25 Factor a perfect square on the left side: (t + 1.5)(t + 1.5) = 9.25 Calculate the square root of the right side: 3.041381265 Break this problem into two subproblems by setting (t + 1.5) equal to 3.041381265 and -3.041381265.Subproblem 1
t + 1.5 = 3.041381265 Simplifying t + 1.5 = 3.041381265 Reorder the terms: 1.5 + t = 3.041381265 Solving 1.5 + t = 3.041381265 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + t = 3.041381265 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + t = 3.041381265 + -1.5 t = 3.041381265 + -1.5 Combine like terms: 3.041381265 + -1.5 = 1.541381265 t = 1.541381265 Simplifying t = 1.541381265Subproblem 2
t + 1.5 = -3.041381265 Simplifying t + 1.5 = -3.041381265 Reorder the terms: 1.5 + t = -3.041381265 Solving 1.5 + t = -3.041381265 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + t = -3.041381265 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + t = -3.041381265 + -1.5 t = -3.041381265 + -1.5 Combine like terms: -3.041381265 + -1.5 = -4.541381265 t = -4.541381265 Simplifying t = -4.541381265Solution
The solution to the problem is based on the solutions from the subproblems. t = {1.541381265, -4.541381265}
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