0.1t^2-20t+888.8=0

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Solution for 0.1t^2-20t+888.8=0 equation:


Simplifying
0.1t2 + -20t + 888.8 = 0

Reorder the terms:
888.8 + -20t + 0.1t2 = 0

Solving
888.8 + -20t + 0.1t2 = 0

Solving for variable 't'.

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

Divide each side by '0.1'.
8888 + -200t + t2 = 0

Move the constant term to the right:

Add '-8888' to each side of the equation.
8888 + -200t + -8888 + t2 = 0 + -8888

Reorder the terms:
8888 + -8888 + -200t + t2 = 0 + -8888

Combine like terms: 8888 + -8888 = 0
0 + -200t + t2 = 0 + -8888
-200t + t2 = 0 + -8888

Combine like terms: 0 + -8888 = -8888
-200t + t2 = -8888

The t term is -200t.  Take half its coefficient (-100).
Square it (10000) and add it to both sides.

Add '10000' to each side of the equation.
-200t + 10000 + t2 = -8888 + 10000

Reorder the terms:
10000 + -200t + t2 = -8888 + 10000

Combine like terms: -8888 + 10000 = 1112
10000 + -200t + t2 = 1112

Factor a perfect square on the left side:
(t + -100)(t + -100) = 1112

Calculate the square root of the right side: 33.346664001

Break this problem into two subproblems by setting 
(t + -100) equal to 33.346664001 and -33.346664001.

Subproblem 1

t + -100 = 33.346664001 Simplifying t + -100 = 33.346664001 Reorder the terms: -100 + t = 33.346664001 Solving -100 + t = 33.346664001 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '100' to each side of the equation. -100 + 100 + t = 33.346664001 + 100 Combine like terms: -100 + 100 = 0 0 + t = 33.346664001 + 100 t = 33.346664001 + 100 Combine like terms: 33.346664001 + 100 = 133.346664001 t = 133.346664001 Simplifying t = 133.346664001

Subproblem 2

t + -100 = -33.346664001 Simplifying t + -100 = -33.346664001 Reorder the terms: -100 + t = -33.346664001 Solving -100 + t = -33.346664001 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '100' to each side of the equation. -100 + 100 + t = -33.346664001 + 100 Combine like terms: -100 + 100 = 0 0 + t = -33.346664001 + 100 t = -33.346664001 + 100 Combine like terms: -33.346664001 + 100 = 66.653335999 t = 66.653335999 Simplifying t = 66.653335999

Solution

The solution to the problem is based on the solutions from the subproblems. t = {133.346664001, 66.653335999}

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