t^2-38t-140=0

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Solution for t^2-38t-140=0 equation:


Simplifying
t2 + -38t + -140 = 0

Reorder the terms:
-140 + -38t + t2 = 0

Solving
-140 + -38t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '140' to each side of the equation.
-140 + -38t + 140 + t2 = 0 + 140

Reorder the terms:
-140 + 140 + -38t + t2 = 0 + 140

Combine like terms: -140 + 140 = 0
0 + -38t + t2 = 0 + 140
-38t + t2 = 0 + 140

Combine like terms: 0 + 140 = 140
-38t + t2 = 140

The t term is -38t.  Take half its coefficient (-19).
Square it (361) and add it to both sides.

Add '361' to each side of the equation.
-38t + 361 + t2 = 140 + 361

Reorder the terms:
361 + -38t + t2 = 140 + 361

Combine like terms: 140 + 361 = 501
361 + -38t + t2 = 501

Factor a perfect square on the left side:
(t + -19)(t + -19) = 501

Calculate the square root of the right side: 22.383029286

Break this problem into two subproblems by setting 
(t + -19) equal to 22.383029286 and -22.383029286.

Subproblem 1

t + -19 = 22.383029286 Simplifying t + -19 = 22.383029286 Reorder the terms: -19 + t = 22.383029286 Solving -19 + t = 22.383029286 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + t = 22.383029286 + 19 Combine like terms: -19 + 19 = 0 0 + t = 22.383029286 + 19 t = 22.383029286 + 19 Combine like terms: 22.383029286 + 19 = 41.383029286 t = 41.383029286 Simplifying t = 41.383029286

Subproblem 2

t + -19 = -22.383029286 Simplifying t + -19 = -22.383029286 Reorder the terms: -19 + t = -22.383029286 Solving -19 + t = -22.383029286 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + t = -22.383029286 + 19 Combine like terms: -19 + 19 = 0 0 + t = -22.383029286 + 19 t = -22.383029286 + 19 Combine like terms: -22.383029286 + 19 = -3.383029286 t = -3.383029286 Simplifying t = -3.383029286

Solution

The solution to the problem is based on the solutions from the subproblems. t = {41.383029286, -3.383029286}

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