-16t^2+160t-125=0

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Solution for -16t^2+160t-125=0 equation:


Simplifying
-16t2 + 160t + -125 = 0

Reorder the terms:
-125 + 160t + -16t2 = 0

Solving
-125 + 160t + -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'.
7.8125 + -10t + t2 = 0

Move the constant term to the right:

Add '-7.8125' to each side of the equation.
7.8125 + -10t + -7.8125 + t2 = 0 + -7.8125

Reorder the terms:
7.8125 + -7.8125 + -10t + t2 = 0 + -7.8125

Combine like terms: 7.8125 + -7.8125 = 0.0000
0.0000 + -10t + t2 = 0 + -7.8125
-10t + t2 = 0 + -7.8125

Combine like terms: 0 + -7.8125 = -7.8125
-10t + t2 = -7.8125

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 = -7.8125 + 25

Reorder the terms:
25 + -10t + t2 = -7.8125 + 25

Combine like terms: -7.8125 + 25 = 17.1875
25 + -10t + t2 = 17.1875

Factor a perfect square on the left side:
(t + -5)(t + -5) = 17.1875

Calculate the square root of the right side: 4.145780988

Break this problem into two subproblems by setting 
(t + -5) equal to 4.145780988 and -4.145780988.

Subproblem 1

t + -5 = 4.145780988 Simplifying t + -5 = 4.145780988 Reorder the terms: -5 + t = 4.145780988 Solving -5 + t = 4.145780988 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 = 4.145780988 + 5 Combine like terms: -5 + 5 = 0 0 + t = 4.145780988 + 5 t = 4.145780988 + 5 Combine like terms: 4.145780988 + 5 = 9.145780988 t = 9.145780988 Simplifying t = 9.145780988

Subproblem 2

t + -5 = -4.145780988 Simplifying t + -5 = -4.145780988 Reorder the terms: -5 + t = -4.145780988 Solving -5 + t = -4.145780988 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 = -4.145780988 + 5 Combine like terms: -5 + 5 = 0 0 + t = -4.145780988 + 5 t = -4.145780988 + 5 Combine like terms: -4.145780988 + 5 = 0.854219012 t = 0.854219012 Simplifying t = 0.854219012

Solution

The solution to the problem is based on the solutions from the subproblems. t = {9.145780988, 0.854219012}

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