-16t^2+75t+5=0

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Solution for -16t^2+75t+5=0 equation:


Simplifying
-16t2 + 75t + 5 = 0

Reorder the terms:
5 + 75t + -16t2 = 0

Solving
5 + 75t + -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'.
-0.3125 + -4.6875t + t2 = 0

Move the constant term to the right:

Add '0.3125' to each side of the equation.
-0.3125 + -4.6875t + 0.3125 + t2 = 0 + 0.3125

Reorder the terms:
-0.3125 + 0.3125 + -4.6875t + t2 = 0 + 0.3125

Combine like terms: -0.3125 + 0.3125 = 0.0000
0.0000 + -4.6875t + t2 = 0 + 0.3125
-4.6875t + t2 = 0 + 0.3125

Combine like terms: 0 + 0.3125 = 0.3125
-4.6875t + t2 = 0.3125

The t term is -4.6875t.  Take half its coefficient (-2.34375).
Square it (5.493164063) and add it to both sides.

Add '5.493164063' to each side of the equation.
-4.6875t + 5.493164063 + t2 = 0.3125 + 5.493164063

Reorder the terms:
5.493164063 + -4.6875t + t2 = 0.3125 + 5.493164063

Combine like terms: 0.3125 + 5.493164063 = 5.805664063
5.493164063 + -4.6875t + t2 = 5.805664063

Factor a perfect square on the left side:
(t + -2.34375)(t + -2.34375) = 5.805664063

Calculate the square root of the right side: 2.409494566

Break this problem into two subproblems by setting 
(t + -2.34375) equal to 2.409494566 and -2.409494566.

Subproblem 1

t + -2.34375 = 2.409494566 Simplifying t + -2.34375 = 2.409494566 Reorder the terms: -2.34375 + t = 2.409494566 Solving -2.34375 + t = 2.409494566 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.34375' to each side of the equation. -2.34375 + 2.34375 + t = 2.409494566 + 2.34375 Combine like terms: -2.34375 + 2.34375 = 0.00000 0.00000 + t = 2.409494566 + 2.34375 t = 2.409494566 + 2.34375 Combine like terms: 2.409494566 + 2.34375 = 4.753244566 t = 4.753244566 Simplifying t = 4.753244566

Subproblem 2

t + -2.34375 = -2.409494566 Simplifying t + -2.34375 = -2.409494566 Reorder the terms: -2.34375 + t = -2.409494566 Solving -2.34375 + t = -2.409494566 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.34375' to each side of the equation. -2.34375 + 2.34375 + t = -2.409494566 + 2.34375 Combine like terms: -2.34375 + 2.34375 = 0.00000 0.00000 + t = -2.409494566 + 2.34375 t = -2.409494566 + 2.34375 Combine like terms: -2.409494566 + 2.34375 = -0.065744566 t = -0.065744566 Simplifying t = -0.065744566

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.753244566, -0.065744566}

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