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Simplifying 3t2 + -12t + 9 = 4 Reorder the terms: 9 + -12t + 3t2 = 4 Solving 9 + -12t + 3t2 = 4 Solving for variable 't'. Reorder the terms: 9 + -4 + -12t + 3t2 = 4 + -4 Combine like terms: 9 + -4 = 5 5 + -12t + 3t2 = 4 + -4 Combine like terms: 4 + -4 = 0 5 + -12t + 3t2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 1.666666667 + -4t + t2 = 0 Move the constant term to the right: Add '-1.666666667' to each side of the equation. 1.666666667 + -4t + -1.666666667 + t2 = 0 + -1.666666667 Reorder the terms: 1.666666667 + -1.666666667 + -4t + t2 = 0 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + -4t + t2 = 0 + -1.666666667 -4t + t2 = 0 + -1.666666667 Combine like terms: 0 + -1.666666667 = -1.666666667 -4t + t2 = -1.666666667 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 = -1.666666667 + 4 Reorder the terms: 4 + -4t + t2 = -1.666666667 + 4 Combine like terms: -1.666666667 + 4 = 2.333333333 4 + -4t + t2 = 2.333333333 Factor a perfect square on the left side: (t + -2)(t + -2) = 2.333333333 Calculate the square root of the right side: 1.527525232 Break this problem into two subproblems by setting (t + -2) equal to 1.527525232 and -1.527525232.Subproblem 1
t + -2 = 1.527525232 Simplifying t + -2 = 1.527525232 Reorder the terms: -2 + t = 1.527525232 Solving -2 + t = 1.527525232 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 = 1.527525232 + 2 Combine like terms: -2 + 2 = 0 0 + t = 1.527525232 + 2 t = 1.527525232 + 2 Combine like terms: 1.527525232 + 2 = 3.527525232 t = 3.527525232 Simplifying t = 3.527525232Subproblem 2
t + -2 = -1.527525232 Simplifying t + -2 = -1.527525232 Reorder the terms: -2 + t = -1.527525232 Solving -2 + t = -1.527525232 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 = -1.527525232 + 2 Combine like terms: -2 + 2 = 0 0 + t = -1.527525232 + 2 t = -1.527525232 + 2 Combine like terms: -1.527525232 + 2 = 0.472474768 t = 0.472474768 Simplifying t = 0.472474768Solution
The solution to the problem is based on the solutions from the subproblems. t = {3.527525232, 0.472474768}
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