t^2-45t-36=0

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Solution for t^2-45t-36=0 equation:


Simplifying
t2 + -45t + -36 = 0

Reorder the terms:
-36 + -45t + t2 = 0

Solving
-36 + -45t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '36' to each side of the equation.
-36 + -45t + 36 + t2 = 0 + 36

Reorder the terms:
-36 + 36 + -45t + t2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + -45t + t2 = 0 + 36
-45t + t2 = 0 + 36

Combine like terms: 0 + 36 = 36
-45t + t2 = 36

The t term is -45t.  Take half its coefficient (-22.5).
Square it (506.25) and add it to both sides.

Add '506.25' to each side of the equation.
-45t + 506.25 + t2 = 36 + 506.25

Reorder the terms:
506.25 + -45t + t2 = 36 + 506.25

Combine like terms: 36 + 506.25 = 542.25
506.25 + -45t + t2 = 542.25

Factor a perfect square on the left side:
(t + -22.5)(t + -22.5) = 542.25

Calculate the square root of the right side: 23.286262044

Break this problem into two subproblems by setting 
(t + -22.5) equal to 23.286262044 and -23.286262044.

Subproblem 1

t + -22.5 = 23.286262044 Simplifying t + -22.5 = 23.286262044 Reorder the terms: -22.5 + t = 23.286262044 Solving -22.5 + t = 23.286262044 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '22.5' to each side of the equation. -22.5 + 22.5 + t = 23.286262044 + 22.5 Combine like terms: -22.5 + 22.5 = 0.0 0.0 + t = 23.286262044 + 22.5 t = 23.286262044 + 22.5 Combine like terms: 23.286262044 + 22.5 = 45.786262044 t = 45.786262044 Simplifying t = 45.786262044

Subproblem 2

t + -22.5 = -23.286262044 Simplifying t + -22.5 = -23.286262044 Reorder the terms: -22.5 + t = -23.286262044 Solving -22.5 + t = -23.286262044 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '22.5' to each side of the equation. -22.5 + 22.5 + t = -23.286262044 + 22.5 Combine like terms: -22.5 + 22.5 = 0.0 0.0 + t = -23.286262044 + 22.5 t = -23.286262044 + 22.5 Combine like terms: -23.286262044 + 22.5 = -0.786262044 t = -0.786262044 Simplifying t = -0.786262044

Solution

The solution to the problem is based on the solutions from the subproblems. t = {45.786262044, -0.786262044}

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