0=-3t^2+30t-29

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Solution for 0=-3t^2+30t-29 equation:


Simplifying
0 = -3t2 + 30t + -29

Reorder the terms:
0 = -29 + 30t + -3t2

Solving
0 = -29 + 30t + -3t2

Solving for variable 't'.

Combine like terms: 0 + 29 = 29
29 + -30t + 3t2 = -29 + 30t + -3t2 + 29 + -30t + 3t2

Reorder the terms:
29 + -30t + 3t2 = -29 + 29 + 30t + -30t + -3t2 + 3t2

Combine like terms: -29 + 29 = 0
29 + -30t + 3t2 = 0 + 30t + -30t + -3t2 + 3t2
29 + -30t + 3t2 = 30t + -30t + -3t2 + 3t2

Combine like terms: 30t + -30t = 0
29 + -30t + 3t2 = 0 + -3t2 + 3t2
29 + -30t + 3t2 = -3t2 + 3t2

Combine like terms: -3t2 + 3t2 = 0
29 + -30t + 3t2 = 0

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
9.666666667 + -10t + t2 = 0

Move the constant term to the right:

Add '-9.666666667' to each side of the equation.
9.666666667 + -10t + -9.666666667 + t2 = 0 + -9.666666667

Reorder the terms:
9.666666667 + -9.666666667 + -10t + t2 = 0 + -9.666666667

Combine like terms: 9.666666667 + -9.666666667 = 0.000000000
0.000000000 + -10t + t2 = 0 + -9.666666667
-10t + t2 = 0 + -9.666666667

Combine like terms: 0 + -9.666666667 = -9.666666667
-10t + t2 = -9.666666667

The t term is -10t.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10t + 25 + t2 = -9.666666667 + 25

Reorder the terms:
25 + -10t + t2 = -9.666666667 + 25

Combine like terms: -9.666666667 + 25 = 15.333333333
25 + -10t + t2 = 15.333333333

Factor a perfect square on the left side:
(t + -5)(t + -5) = 15.333333333

Calculate the square root of the right side: 3.915780041

Break this problem into two subproblems by setting 
(t + -5) equal to 3.915780041 and -3.915780041.

Subproblem 1

t + -5 = 3.915780041 Simplifying t + -5 = 3.915780041 Reorder the terms: -5 + t = 3.915780041 Solving -5 + t = 3.915780041 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + t = 3.915780041 + 5 Combine like terms: -5 + 5 = 0 0 + t = 3.915780041 + 5 t = 3.915780041 + 5 Combine like terms: 3.915780041 + 5 = 8.915780041 t = 8.915780041 Simplifying t = 8.915780041

Subproblem 2

t + -5 = -3.915780041 Simplifying t + -5 = -3.915780041 Reorder the terms: -5 + t = -3.915780041 Solving -5 + t = -3.915780041 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + t = -3.915780041 + 5 Combine like terms: -5 + 5 = 0 0 + t = -3.915780041 + 5 t = -3.915780041 + 5 Combine like terms: -3.915780041 + 5 = 1.084219959 t = 1.084219959 Simplifying t = 1.084219959

Solution

The solution to the problem is based on the solutions from the subproblems. t = {8.915780041, 1.084219959}

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