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Simplifying 0 = -16t2 + 65t + 3.5 Reorder the terms: 0 = 3.5 + 65t + -16t2 Solving 0 = 3.5 + 65t + -16t2 Solving for variable 't'. Combine like terms: 0 + -3.5 = -3.5 -3.5 + -65t + 16t2 = 3.5 + 65t + -16t2 + -3.5 + -65t + 16t2 Reorder the terms: -3.5 + -65t + 16t2 = 3.5 + -3.5 + 65t + -65t + -16t2 + 16t2 Combine like terms: 3.5 + -3.5 = 0.0 -3.5 + -65t + 16t2 = 0.0 + 65t + -65t + -16t2 + 16t2 -3.5 + -65t + 16t2 = 65t + -65t + -16t2 + 16t2 Combine like terms: 65t + -65t = 0 -3.5 + -65t + 16t2 = 0 + -16t2 + 16t2 -3.5 + -65t + 16t2 = -16t2 + 16t2 Combine like terms: -16t2 + 16t2 = 0 -3.5 + -65t + 16t2 = 0 Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -0.21875 + -4.0625t + t2 = 0 Move the constant term to the right: Add '0.21875' to each side of the equation. -0.21875 + -4.0625t + 0.21875 + t2 = 0 + 0.21875 Reorder the terms: -0.21875 + 0.21875 + -4.0625t + t2 = 0 + 0.21875 Combine like terms: -0.21875 + 0.21875 = 0.00000 0.00000 + -4.0625t + t2 = 0 + 0.21875 -4.0625t + t2 = 0 + 0.21875 Combine like terms: 0 + 0.21875 = 0.21875 -4.0625t + t2 = 0.21875 The t term is -4.0625t. Take half its coefficient (-2.03125). Square it (4.125976563) and add it to both sides. Add '4.125976563' to each side of the equation. -4.0625t + 4.125976563 + t2 = 0.21875 + 4.125976563 Reorder the terms: 4.125976563 + -4.0625t + t2 = 0.21875 + 4.125976563 Combine like terms: 0.21875 + 4.125976563 = 4.344726563 4.125976563 + -4.0625t + t2 = 4.344726563 Factor a perfect square on the left side: (t + -2.03125)(t + -2.03125) = 4.344726563 Calculate the square root of the right side: 2.084400768 Break this problem into two subproblems by setting (t + -2.03125) equal to 2.084400768 and -2.084400768.Subproblem 1
t + -2.03125 = 2.084400768 Simplifying t + -2.03125 = 2.084400768 Reorder the terms: -2.03125 + t = 2.084400768 Solving -2.03125 + t = 2.084400768 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.03125' to each side of the equation. -2.03125 + 2.03125 + t = 2.084400768 + 2.03125 Combine like terms: -2.03125 + 2.03125 = 0.00000 0.00000 + t = 2.084400768 + 2.03125 t = 2.084400768 + 2.03125 Combine like terms: 2.084400768 + 2.03125 = 4.115650768 t = 4.115650768 Simplifying t = 4.115650768Subproblem 2
t + -2.03125 = -2.084400768 Simplifying t + -2.03125 = -2.084400768 Reorder the terms: -2.03125 + t = -2.084400768 Solving -2.03125 + t = -2.084400768 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.03125' to each side of the equation. -2.03125 + 2.03125 + t = -2.084400768 + 2.03125 Combine like terms: -2.03125 + 2.03125 = 0.00000 0.00000 + t = -2.084400768 + 2.03125 t = -2.084400768 + 2.03125 Combine like terms: -2.084400768 + 2.03125 = -0.053150768 t = -0.053150768 Simplifying t = -0.053150768Solution
The solution to the problem is based on the solutions from the subproblems. t = {4.115650768, -0.053150768}
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