4.905t^2-7.625t+0.65=0

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Solution for 4.905t^2-7.625t+0.65=0 equation:


Simplifying
4.905t2 + -7.625t + 0.65 = 0

Reorder the terms:
0.65 + -7.625t + 4.905t2 = 0

Solving
0.65 + -7.625t + 4.905t2 = 0

Solving for variable 't'.

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

Divide each side by '4.905'.
0.1325178389 + -1.554536188t + t2 = 0

Move the constant term to the right:

Add '-0.1325178389' to each side of the equation.
0.1325178389 + -1.554536188t + -0.1325178389 + t2 = 0 + -0.1325178389

Reorder the terms:
0.1325178389 + -0.1325178389 + -1.554536188t + t2 = 0 + -0.1325178389

Combine like terms: 0.1325178389 + -0.1325178389 = 0.0000000000
0.0000000000 + -1.554536188t + t2 = 0 + -0.1325178389
-1.554536188t + t2 = 0 + -0.1325178389

Combine like terms: 0 + -0.1325178389 = -0.1325178389
-1.554536188t + t2 = -0.1325178389

The t term is -1.554536188t.  Take half its coefficient (-0.777268094).
Square it (0.6041456900) and add it to both sides.

Add '0.6041456900' to each side of the equation.
-1.554536188t + 0.6041456900 + t2 = -0.1325178389 + 0.6041456900

Reorder the terms:
0.6041456900 + -1.554536188t + t2 = -0.1325178389 + 0.6041456900

Combine like terms: -0.1325178389 + 0.6041456900 = 0.4716278511
0.6041456900 + -1.554536188t + t2 = 0.4716278511

Factor a perfect square on the left side:
(t + -0.777268094)(t + -0.777268094) = 0.4716278511

Calculate the square root of the right side: 0.686751666

Break this problem into two subproblems by setting 
(t + -0.777268094) equal to 0.686751666 and -0.686751666.

Subproblem 1

t + -0.777268094 = 0.686751666 Simplifying t + -0.777268094 = 0.686751666 Reorder the terms: -0.777268094 + t = 0.686751666 Solving -0.777268094 + t = 0.686751666 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.777268094' to each side of the equation. -0.777268094 + 0.777268094 + t = 0.686751666 + 0.777268094 Combine like terms: -0.777268094 + 0.777268094 = 0.000000000 0.000000000 + t = 0.686751666 + 0.777268094 t = 0.686751666 + 0.777268094 Combine like terms: 0.686751666 + 0.777268094 = 1.46401976 t = 1.46401976 Simplifying t = 1.46401976

Subproblem 2

t + -0.777268094 = -0.686751666 Simplifying t + -0.777268094 = -0.686751666 Reorder the terms: -0.777268094 + t = -0.686751666 Solving -0.777268094 + t = -0.686751666 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.777268094' to each side of the equation. -0.777268094 + 0.777268094 + t = -0.686751666 + 0.777268094 Combine like terms: -0.777268094 + 0.777268094 = 0.000000000 0.000000000 + t = -0.686751666 + 0.777268094 t = -0.686751666 + 0.777268094 Combine like terms: -0.686751666 + 0.777268094 = 0.090516428 t = 0.090516428 Simplifying t = 0.090516428

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.46401976, 0.090516428}

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