9t^2-200t+776=0

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Solution for 9t^2-200t+776=0 equation:


Simplifying
9t2 + -200t + 776 = 0

Reorder the terms:
776 + -200t + 9t2 = 0

Solving
776 + -200t + 9t2 = 0

Solving for variable 't'.

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

Divide each side by '9'.
86.22222222 + -22.22222222t + t2 = 0

Move the constant term to the right:

Add '-86.22222222' to each side of the equation.
86.22222222 + -22.22222222t + -86.22222222 + t2 = 0 + -86.22222222

Reorder the terms:
86.22222222 + -86.22222222 + -22.22222222t + t2 = 0 + -86.22222222

Combine like terms: 86.22222222 + -86.22222222 = 0.00000000
0.00000000 + -22.22222222t + t2 = 0 + -86.22222222
-22.22222222t + t2 = 0 + -86.22222222

Combine like terms: 0 + -86.22222222 = -86.22222222
-22.22222222t + t2 = -86.22222222

The t term is -22.22222222t.  Take half its coefficient (-11.11111111).
Square it (123.4567901) and add it to both sides.

Add '123.4567901' to each side of the equation.
-22.22222222t + 123.4567901 + t2 = -86.22222222 + 123.4567901

Reorder the terms:
123.4567901 + -22.22222222t + t2 = -86.22222222 + 123.4567901

Combine like terms: -86.22222222 + 123.4567901 = 37.23456788
123.4567901 + -22.22222222t + t2 = 37.23456788

Factor a perfect square on the left side:
(t + -11.11111111)(t + -11.11111111) = 37.23456788

Calculate the square root of the right side: 6.102013428

Break this problem into two subproblems by setting 
(t + -11.11111111) equal to 6.102013428 and -6.102013428.

Subproblem 1

t + -11.11111111 = 6.102013428 Simplifying t + -11.11111111 = 6.102013428 Reorder the terms: -11.11111111 + t = 6.102013428 Solving -11.11111111 + t = 6.102013428 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '11.11111111' to each side of the equation. -11.11111111 + 11.11111111 + t = 6.102013428 + 11.11111111 Combine like terms: -11.11111111 + 11.11111111 = 0.00000000 0.00000000 + t = 6.102013428 + 11.11111111 t = 6.102013428 + 11.11111111 Combine like terms: 6.102013428 + 11.11111111 = 17.213124538 t = 17.213124538 Simplifying t = 17.213124538

Subproblem 2

t + -11.11111111 = -6.102013428 Simplifying t + -11.11111111 = -6.102013428 Reorder the terms: -11.11111111 + t = -6.102013428 Solving -11.11111111 + t = -6.102013428 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '11.11111111' to each side of the equation. -11.11111111 + 11.11111111 + t = -6.102013428 + 11.11111111 Combine like terms: -11.11111111 + 11.11111111 = 0.00000000 0.00000000 + t = -6.102013428 + 11.11111111 t = -6.102013428 + 11.11111111 Combine like terms: -6.102013428 + 11.11111111 = 5.009097682 t = 5.009097682 Simplifying t = 5.009097682

Solution

The solution to the problem is based on the solutions from the subproblems. t = {17.213124538, 5.009097682}

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