-16t^2-23t+130=0

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Solution for -16t^2-23t+130=0 equation:


Simplifying
-16t2 + -23t + 130 = 0

Reorder the terms:
130 + -23t + -16t2 = 0

Solving
130 + -23t + -16t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-8.125 + 1.4375t + t2 = 0

Move the constant term to the right:

Add '8.125' to each side of the equation.
-8.125 + 1.4375t + 8.125 + t2 = 0 + 8.125

Reorder the terms:
-8.125 + 8.125 + 1.4375t + t2 = 0 + 8.125

Combine like terms: -8.125 + 8.125 = 0.000
0.000 + 1.4375t + t2 = 0 + 8.125
1.4375t + t2 = 0 + 8.125

Combine like terms: 0 + 8.125 = 8.125
1.4375t + t2 = 8.125

The t term is 1.4375t.  Take half its coefficient (0.71875).
Square it (0.5166015625) and add it to both sides.

Add '0.5166015625' to each side of the equation.
1.4375t + 0.5166015625 + t2 = 8.125 + 0.5166015625

Reorder the terms:
0.5166015625 + 1.4375t + t2 = 8.125 + 0.5166015625

Combine like terms: 8.125 + 0.5166015625 = 8.6416015625
0.5166015625 + 1.4375t + t2 = 8.6416015625

Factor a perfect square on the left side:
(t + 0.71875)(t + 0.71875) = 8.6416015625

Calculate the square root of the right side: 2.93966011

Break this problem into two subproblems by setting 
(t + 0.71875) equal to 2.93966011 and -2.93966011.

Subproblem 1

t + 0.71875 = 2.93966011 Simplifying t + 0.71875 = 2.93966011 Reorder the terms: 0.71875 + t = 2.93966011 Solving 0.71875 + t = 2.93966011 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.71875' to each side of the equation. 0.71875 + -0.71875 + t = 2.93966011 + -0.71875 Combine like terms: 0.71875 + -0.71875 = 0.00000 0.00000 + t = 2.93966011 + -0.71875 t = 2.93966011 + -0.71875 Combine like terms: 2.93966011 + -0.71875 = 2.22091011 t = 2.22091011 Simplifying t = 2.22091011

Subproblem 2

t + 0.71875 = -2.93966011 Simplifying t + 0.71875 = -2.93966011 Reorder the terms: 0.71875 + t = -2.93966011 Solving 0.71875 + t = -2.93966011 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.71875' to each side of the equation. 0.71875 + -0.71875 + t = -2.93966011 + -0.71875 Combine like terms: 0.71875 + -0.71875 = 0.00000 0.00000 + t = -2.93966011 + -0.71875 t = -2.93966011 + -0.71875 Combine like terms: -2.93966011 + -0.71875 = -3.65841011 t = -3.65841011 Simplifying t = -3.65841011

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.22091011, -3.65841011}

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