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Simplifying 5t2 + -15t + -70 = 0 Reorder the terms: -70 + -15t + 5t2 = 0 Solving -70 + -15t + 5t2 = 0 Solving for variable 't'. Factor out the Greatest Common Factor (GCF), '5'. 5(-14 + -3t + t2) = 0 Ignore the factor 5.Subproblem 1
Set the factor '(-14 + -3t + t2)' equal to zero and attempt to solve: Simplifying -14 + -3t + t2 = 0 Solving -14 + -3t + t2 = 0 Begin completing the square. Move the constant term to the right: Add '14' to each side of the equation. -14 + -3t + 14 + t2 = 0 + 14 Reorder the terms: -14 + 14 + -3t + t2 = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -3t + t2 = 0 + 14 -3t + t2 = 0 + 14 Combine like terms: 0 + 14 = 14 -3t + t2 = 14 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 = 14 + 2.25 Reorder the terms: 2.25 + -3t + t2 = 14 + 2.25 Combine like terms: 14 + 2.25 = 16.25 2.25 + -3t + t2 = 16.25 Factor a perfect square on the left side: (t + -1.5)(t + -1.5) = 16.25 Calculate the square root of the right side: 4.031128874 Break this problem into two subproblems by setting (t + -1.5) equal to 4.031128874 and -4.031128874.Subproblem 1
t + -1.5 = 4.031128874 Simplifying t + -1.5 = 4.031128874 Reorder the terms: -1.5 + t = 4.031128874 Solving -1.5 + t = 4.031128874 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 = 4.031128874 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + t = 4.031128874 + 1.5 t = 4.031128874 + 1.5 Combine like terms: 4.031128874 + 1.5 = 5.531128874 t = 5.531128874 Simplifying t = 5.531128874Subproblem 2
t + -1.5 = -4.031128874 Simplifying t + -1.5 = -4.031128874 Reorder the terms: -1.5 + t = -4.031128874 Solving -1.5 + t = -4.031128874 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 = -4.031128874 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + t = -4.031128874 + 1.5 t = -4.031128874 + 1.5 Combine like terms: -4.031128874 + 1.5 = -2.531128874 t = -2.531128874 Simplifying t = -2.531128874Solution
The solution to the problem is based on the solutions from the subproblems. t = {5.531128874, -2.531128874}Solution
t = {5.531128874, -2.531128874}
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