16t^2-28t+5=0

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Solution for 16t^2-28t+5=0 equation:


Simplifying
16t2 + -28t + 5 = 0

Reorder the terms:
5 + -28t + 16t2 = 0

Solving
5 + -28t + 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 + -1.75t + t2 = 0

Move the constant term to the right:

Add '-0.3125' to each side of the equation.
0.3125 + -1.75t + -0.3125 + t2 = 0 + -0.3125

Reorder the terms:
0.3125 + -0.3125 + -1.75t + t2 = 0 + -0.3125

Combine like terms: 0.3125 + -0.3125 = 0.0000
0.0000 + -1.75t + t2 = 0 + -0.3125
-1.75t + t2 = 0 + -0.3125

Combine like terms: 0 + -0.3125 = -0.3125
-1.75t + t2 = -0.3125

The t term is -1.75t.  Take half its coefficient (-0.875).
Square it (0.765625) and add it to both sides.

Add '0.765625' to each side of the equation.
-1.75t + 0.765625 + t2 = -0.3125 + 0.765625

Reorder the terms:
0.765625 + -1.75t + t2 = -0.3125 + 0.765625

Combine like terms: -0.3125 + 0.765625 = 0.453125
0.765625 + -1.75t + t2 = 0.453125

Factor a perfect square on the left side:
(t + -0.875)(t + -0.875) = 0.453125

Calculate the square root of the right side: 0.673145601

Break this problem into two subproblems by setting 
(t + -0.875) equal to 0.673145601 and -0.673145601.

Subproblem 1

t + -0.875 = 0.673145601 Simplifying t + -0.875 = 0.673145601 Reorder the terms: -0.875 + t = 0.673145601 Solving -0.875 + t = 0.673145601 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + t = 0.673145601 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + t = 0.673145601 + 0.875 t = 0.673145601 + 0.875 Combine like terms: 0.673145601 + 0.875 = 1.548145601 t = 1.548145601 Simplifying t = 1.548145601

Subproblem 2

t + -0.875 = -0.673145601 Simplifying t + -0.875 = -0.673145601 Reorder the terms: -0.875 + t = -0.673145601 Solving -0.875 + t = -0.673145601 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + t = -0.673145601 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + t = -0.673145601 + 0.875 t = -0.673145601 + 0.875 Combine like terms: -0.673145601 + 0.875 = 0.201854399 t = 0.201854399 Simplifying t = 0.201854399

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.548145601, 0.201854399}

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