t^2-20t+10=0

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Solution for t^2-20t+10=0 equation:


Simplifying
t2 + -20t + 10 = 0

Reorder the terms:
10 + -20t + t2 = 0

Solving
10 + -20t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '-10' to each side of the equation.
10 + -20t + -10 + t2 = 0 + -10

Reorder the terms:
10 + -10 + -20t + t2 = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -20t + t2 = 0 + -10
-20t + t2 = 0 + -10

Combine like terms: 0 + -10 = -10
-20t + t2 = -10

The t term is -20t.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20t + 100 + t2 = -10 + 100

Reorder the terms:
100 + -20t + t2 = -10 + 100

Combine like terms: -10 + 100 = 90
100 + -20t + t2 = 90

Factor a perfect square on the left side:
(t + -10)(t + -10) = 90

Calculate the square root of the right side: 9.486832981

Break this problem into two subproblems by setting 
(t + -10) equal to 9.486832981 and -9.486832981.

Subproblem 1

t + -10 = 9.486832981 Simplifying t + -10 = 9.486832981 Reorder the terms: -10 + t = 9.486832981 Solving -10 + t = 9.486832981 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + t = 9.486832981 + 10 Combine like terms: -10 + 10 = 0 0 + t = 9.486832981 + 10 t = 9.486832981 + 10 Combine like terms: 9.486832981 + 10 = 19.486832981 t = 19.486832981 Simplifying t = 19.486832981

Subproblem 2

t + -10 = -9.486832981 Simplifying t + -10 = -9.486832981 Reorder the terms: -10 + t = -9.486832981 Solving -10 + t = -9.486832981 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + t = -9.486832981 + 10 Combine like terms: -10 + 10 = 0 0 + t = -9.486832981 + 10 t = -9.486832981 + 10 Combine like terms: -9.486832981 + 10 = 0.513167019 t = 0.513167019 Simplifying t = 0.513167019

Solution

The solution to the problem is based on the solutions from the subproblems. t = {19.486832981, 0.513167019}

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