T^2+10T-102=0

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Solution for T^2+10T-102=0 equation:


Simplifying
T2 + 10T + -102 = 0

Reorder the terms:
-102 + 10T + T2 = 0

Solving
-102 + 10T + T2 = 0

Solving for variable 'T'.

Begin completing the square.

Move the constant term to the right:

Add '102' to each side of the equation.
-102 + 10T + 102 + T2 = 0 + 102

Reorder the terms:
-102 + 102 + 10T + T2 = 0 + 102

Combine like terms: -102 + 102 = 0
0 + 10T + T2 = 0 + 102
10T + T2 = 0 + 102

Combine like terms: 0 + 102 = 102
10T + T2 = 102

The T term is 10T.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10T + 25 + T2 = 102 + 25

Reorder the terms:
25 + 10T + T2 = 102 + 25

Combine like terms: 102 + 25 = 127
25 + 10T + T2 = 127

Factor a perfect square on the left side:
(T + 5)(T + 5) = 127

Calculate the square root of the right side: 11.26942767

Break this problem into two subproblems by setting 
(T + 5) equal to 11.26942767 and -11.26942767.

Subproblem 1

T + 5 = 11.26942767 Simplifying T + 5 = 11.26942767 Reorder the terms: 5 + T = 11.26942767 Solving 5 + T = 11.26942767 Solving for variable 'T'. Move all terms containing T to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + T = 11.26942767 + -5 Combine like terms: 5 + -5 = 0 0 + T = 11.26942767 + -5 T = 11.26942767 + -5 Combine like terms: 11.26942767 + -5 = 6.26942767 T = 6.26942767 Simplifying T = 6.26942767

Subproblem 2

T + 5 = -11.26942767 Simplifying T + 5 = -11.26942767 Reorder the terms: 5 + T = -11.26942767 Solving 5 + T = -11.26942767 Solving for variable 'T'. Move all terms containing T to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + T = -11.26942767 + -5 Combine like terms: 5 + -5 = 0 0 + T = -11.26942767 + -5 T = -11.26942767 + -5 Combine like terms: -11.26942767 + -5 = -16.26942767 T = -16.26942767 Simplifying T = -16.26942767

Solution

The solution to the problem is based on the solutions from the subproblems. T = {6.26942767, -16.26942767}

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