190=19t^2-100t

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Solution for 190=19t^2-100t equation:


Simplifying
190 = 19t2 + -100t

Reorder the terms:
190 = -100t + 19t2

Solving
190 = -100t + 19t2

Solving for variable 't'.

Reorder the terms:
190 + 100t + -19t2 = -100t + 100t + 19t2 + -19t2

Combine like terms: -100t + 100t = 0
190 + 100t + -19t2 = 0 + 19t2 + -19t2
190 + 100t + -19t2 = 19t2 + -19t2

Combine like terms: 19t2 + -19t2 = 0
190 + 100t + -19t2 = 0

Begin completing the square.  Divide all terms by
-19 the coefficient of the squared term: 

Divide each side by '-19'.
-10 + -5.263157895t + t2 = 0

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + -5.263157895t + 10 + t2 = 0 + 10

Reorder the terms:
-10 + 10 + -5.263157895t + t2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -5.263157895t + t2 = 0 + 10
-5.263157895t + t2 = 0 + 10

Combine like terms: 0 + 10 = 10
-5.263157895t + t2 = 10

The t term is -5.263157895t.  Take half its coefficient (-2.631578948).
Square it (6.925207760) and add it to both sides.

Add '6.925207760' to each side of the equation.
-5.263157895t + 6.925207760 + t2 = 10 + 6.925207760

Reorder the terms:
6.925207760 + -5.263157895t + t2 = 10 + 6.925207760

Combine like terms: 10 + 6.925207760 = 16.92520776
6.925207760 + -5.263157895t + t2 = 16.92520776

Factor a perfect square on the left side:
(t + -2.631578948)(t + -2.631578948) = 16.92520776

Calculate the square root of the right side: 4.114025736

Break this problem into two subproblems by setting 
(t + -2.631578948) equal to 4.114025736 and -4.114025736.

Subproblem 1

t + -2.631578948 = 4.114025736 Simplifying t + -2.631578948 = 4.114025736 Reorder the terms: -2.631578948 + t = 4.114025736 Solving -2.631578948 + t = 4.114025736 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.631578948' to each side of the equation. -2.631578948 + 2.631578948 + t = 4.114025736 + 2.631578948 Combine like terms: -2.631578948 + 2.631578948 = 0.000000000 0.000000000 + t = 4.114025736 + 2.631578948 t = 4.114025736 + 2.631578948 Combine like terms: 4.114025736 + 2.631578948 = 6.745604684 t = 6.745604684 Simplifying t = 6.745604684

Subproblem 2

t + -2.631578948 = -4.114025736 Simplifying t + -2.631578948 = -4.114025736 Reorder the terms: -2.631578948 + t = -4.114025736 Solving -2.631578948 + t = -4.114025736 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.631578948' to each side of the equation. -2.631578948 + 2.631578948 + t = -4.114025736 + 2.631578948 Combine like terms: -2.631578948 + 2.631578948 = 0.000000000 0.000000000 + t = -4.114025736 + 2.631578948 t = -4.114025736 + 2.631578948 Combine like terms: -4.114025736 + 2.631578948 = -1.482446788 t = -1.482446788 Simplifying t = -1.482446788

Solution

The solution to the problem is based on the solutions from the subproblems. t = {6.745604684, -1.482446788}

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