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Simplifying -5t2 + -20t + 10 = 0 Reorder the terms: 10 + -20t + -5t2 = 0 Solving 10 + -20t + -5t2 = 0 Solving for variable 't'. Factor out the Greatest Common Factor (GCF), '5'. 5(2 + -4t + -1t2) = 0 Ignore the factor 5.Subproblem 1
Set the factor '(2 + -4t + -1t2)' equal to zero and attempt to solve: Simplifying 2 + -4t + -1t2 = 0 Solving 2 + -4t + -1t2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -2 + 4t + t2 = 0 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 = 6 4 + 4t + t2 = 6 Factor a perfect square on the left side: (t + 2)(t + 2) = 6 Calculate the square root of the right side: 2.449489743 Break this problem into two subproblems by setting (t + 2) equal to 2.449489743 and -2.449489743.Subproblem 1
t + 2 = 2.449489743 Simplifying t + 2 = 2.449489743 Reorder the terms: 2 + t = 2.449489743 Solving 2 + t = 2.449489743 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 = 2.449489743 + -2 Combine like terms: 2 + -2 = 0 0 + t = 2.449489743 + -2 t = 2.449489743 + -2 Combine like terms: 2.449489743 + -2 = 0.449489743 t = 0.449489743 Simplifying t = 0.449489743Subproblem 2
t + 2 = -2.449489743 Simplifying t + 2 = -2.449489743 Reorder the terms: 2 + t = -2.449489743 Solving 2 + t = -2.449489743 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 = -2.449489743 + -2 Combine like terms: 2 + -2 = 0 0 + t = -2.449489743 + -2 t = -2.449489743 + -2 Combine like terms: -2.449489743 + -2 = -4.449489743 t = -4.449489743 Simplifying t = -4.449489743Solution
The solution to the problem is based on the solutions from the subproblems. t = {0.449489743, -4.449489743}Solution
t = {0.449489743, -4.449489743}
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