13t^2-130t+160=0

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Solution for 13t^2-130t+160=0 equation:


Simplifying
13t2 + -130t + 160 = 0

Reorder the terms:
160 + -130t + 13t2 = 0

Solving
160 + -130t + 13t2 = 0

Solving for variable 't'.

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

Divide each side by '13'.
12.30769231 + -10t + t2 = 0

Move the constant term to the right:

Add '-12.30769231' to each side of the equation.
12.30769231 + -10t + -12.30769231 + t2 = 0 + -12.30769231

Reorder the terms:
12.30769231 + -12.30769231 + -10t + t2 = 0 + -12.30769231

Combine like terms: 12.30769231 + -12.30769231 = 0.00000000
0.00000000 + -10t + t2 = 0 + -12.30769231
-10t + t2 = 0 + -12.30769231

Combine like terms: 0 + -12.30769231 = -12.30769231
-10t + t2 = -12.30769231

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 = -12.30769231 + 25

Reorder the terms:
25 + -10t + t2 = -12.30769231 + 25

Combine like terms: -12.30769231 + 25 = 12.69230769
25 + -10t + t2 = 12.69230769

Factor a perfect square on the left side:
(t + -5)(t + -5) = 12.69230769

Calculate the square root of the right side: 3.562626516

Break this problem into two subproblems by setting 
(t + -5) equal to 3.562626516 and -3.562626516.

Subproblem 1

t + -5 = 3.562626516 Simplifying t + -5 = 3.562626516 Reorder the terms: -5 + t = 3.562626516 Solving -5 + t = 3.562626516 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 = 3.562626516 + 5 Combine like terms: -5 + 5 = 0 0 + t = 3.562626516 + 5 t = 3.562626516 + 5 Combine like terms: 3.562626516 + 5 = 8.562626516 t = 8.562626516 Simplifying t = 8.562626516

Subproblem 2

t + -5 = -3.562626516 Simplifying t + -5 = -3.562626516 Reorder the terms: -5 + t = -3.562626516 Solving -5 + t = -3.562626516 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 = -3.562626516 + 5 Combine like terms: -5 + 5 = 0 0 + t = -3.562626516 + 5 t = -3.562626516 + 5 Combine like terms: -3.562626516 + 5 = 1.437373484 t = 1.437373484 Simplifying t = 1.437373484

Solution

The solution to the problem is based on the solutions from the subproblems. t = {8.562626516, 1.437373484}

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