-5T^2+16T+30=0

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Solution for -5T^2+16T+30=0 equation:


Simplifying
-5T2 + 16T + 30 = 0

Reorder the terms:
30 + 16T + -5T2 = 0

Solving
30 + 16T + -5T2 = 0

Solving for variable 'T'.

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
-6 + -3.2T + T2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -3.2T + 6 + T2 = 0 + 6

Reorder the terms:
-6 + 6 + -3.2T + T2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -3.2T + T2 = 0 + 6
-3.2T + T2 = 0 + 6

Combine like terms: 0 + 6 = 6
-3.2T + T2 = 6

The T term is -3.2T.  Take half its coefficient (-1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
-3.2T + 2.56 + T2 = 6 + 2.56

Reorder the terms:
2.56 + -3.2T + T2 = 6 + 2.56

Combine like terms: 6 + 2.56 = 8.56
2.56 + -3.2T + T2 = 8.56

Factor a perfect square on the left side:
(T + -1.6)(T + -1.6) = 8.56

Calculate the square root of the right side: 2.925747768

Break this problem into two subproblems by setting 
(T + -1.6) equal to 2.925747768 and -2.925747768.

Subproblem 1

T + -1.6 = 2.925747768 Simplifying T + -1.6 = 2.925747768 Reorder the terms: -1.6 + T = 2.925747768 Solving -1.6 + T = 2.925747768 Solving for variable 'T'. Move all terms containing T to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + T = 2.925747768 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + T = 2.925747768 + 1.6 T = 2.925747768 + 1.6 Combine like terms: 2.925747768 + 1.6 = 4.525747768 T = 4.525747768 Simplifying T = 4.525747768

Subproblem 2

T + -1.6 = -2.925747768 Simplifying T + -1.6 = -2.925747768 Reorder the terms: -1.6 + T = -2.925747768 Solving -1.6 + T = -2.925747768 Solving for variable 'T'. Move all terms containing T to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + T = -2.925747768 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + T = -2.925747768 + 1.6 T = -2.925747768 + 1.6 Combine like terms: -2.925747768 + 1.6 = -1.325747768 T = -1.325747768 Simplifying T = -1.325747768

Solution

The solution to the problem is based on the solutions from the subproblems. T = {4.525747768, -1.325747768}

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