t^2-20t=50

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Solution for t^2-20t=50 equation:


Simplifying
t2 + -20t = 50

Reorder the terms:
-20t + t2 = 50

Solving
-20t + t2 = 50

Solving for variable 't'.

Reorder the terms:
-50 + -20t + t2 = 50 + -50

Combine like terms: 50 + -50 = 0
-50 + -20t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '50' to each side of the equation.
-50 + -20t + 50 + t2 = 0 + 50

Reorder the terms:
-50 + 50 + -20t + t2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + -20t + t2 = 0 + 50
-20t + t2 = 0 + 50

Combine like terms: 0 + 50 = 50
-20t + t2 = 50

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 = 50 + 100

Reorder the terms:
100 + -20t + t2 = 50 + 100

Combine like terms: 50 + 100 = 150
100 + -20t + t2 = 150

Factor a perfect square on the left side:
(t + -10)(t + -10) = 150

Calculate the square root of the right side: 12.247448714

Break this problem into two subproblems by setting 
(t + -10) equal to 12.247448714 and -12.247448714.

Subproblem 1

t + -10 = 12.247448714 Simplifying t + -10 = 12.247448714 Reorder the terms: -10 + t = 12.247448714 Solving -10 + t = 12.247448714 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 = 12.247448714 + 10 Combine like terms: -10 + 10 = 0 0 + t = 12.247448714 + 10 t = 12.247448714 + 10 Combine like terms: 12.247448714 + 10 = 22.247448714 t = 22.247448714 Simplifying t = 22.247448714

Subproblem 2

t + -10 = -12.247448714 Simplifying t + -10 = -12.247448714 Reorder the terms: -10 + t = -12.247448714 Solving -10 + t = -12.247448714 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 = -12.247448714 + 10 Combine like terms: -10 + 10 = 0 0 + t = -12.247448714 + 10 t = -12.247448714 + 10 Combine like terms: -12.247448714 + 10 = -2.247448714 t = -2.247448714 Simplifying t = -2.247448714

Solution

The solution to the problem is based on the solutions from the subproblems. t = {22.247448714, -2.247448714}

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