t(t-2)=22.5

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Solution for t(t-2)=22.5 equation:


Simplifying
t(t + -2) = 22.5

Reorder the terms:
t(-2 + t) = 22.5
(-2 * t + t * t) = 22.5
(-2t + t2) = 22.5

Solving
-2t + t2 = 22.5

Solving for variable 't'.

Reorder the terms:
-22.5 + -2t + t2 = 22.5 + -22.5

Combine like terms: 22.5 + -22.5 = 0.0
-22.5 + -2t + t2 = 0.0

Begin completing the square.

Move the constant term to the right:

Add '22.5' to each side of the equation.
-22.5 + -2t + 22.5 + t2 = 0.0 + 22.5

Reorder the terms:
-22.5 + 22.5 + -2t + t2 = 0.0 + 22.5

Combine like terms: -22.5 + 22.5 = 0.0
0.0 + -2t + t2 = 0.0 + 22.5
-2t + t2 = 0.0 + 22.5

Combine like terms: 0.0 + 22.5 = 22.5
-2t + t2 = 22.5

The t term is -2t.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2t + 1 + t2 = 22.5 + 1

Reorder the terms:
1 + -2t + t2 = 22.5 + 1

Combine like terms: 22.5 + 1 = 23.5
1 + -2t + t2 = 23.5

Factor a perfect square on the left side:
(t + -1)(t + -1) = 23.5

Calculate the square root of the right side: 4.847679857

Break this problem into two subproblems by setting 
(t + -1) equal to 4.847679857 and -4.847679857.

Subproblem 1

t + -1 = 4.847679857 Simplifying t + -1 = 4.847679857 Reorder the terms: -1 + t = 4.847679857 Solving -1 + t = 4.847679857 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + t = 4.847679857 + 1 Combine like terms: -1 + 1 = 0 0 + t = 4.847679857 + 1 t = 4.847679857 + 1 Combine like terms: 4.847679857 + 1 = 5.847679857 t = 5.847679857 Simplifying t = 5.847679857

Subproblem 2

t + -1 = -4.847679857 Simplifying t + -1 = -4.847679857 Reorder the terms: -1 + t = -4.847679857 Solving -1 + t = -4.847679857 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + t = -4.847679857 + 1 Combine like terms: -1 + 1 = 0 0 + t = -4.847679857 + 1 t = -4.847679857 + 1 Combine like terms: -4.847679857 + 1 = -3.847679857 t = -3.847679857 Simplifying t = -3.847679857

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.847679857, -3.847679857}

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