-5t^2+56t+5=0

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Solution for -5t^2+56t+5=0 equation:


Simplifying
-5t2 + 56t + 5 = 0

Reorder the terms:
5 + 56t + -5t2 = 0

Solving
5 + 56t + -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'.
-1 + -11.2t + t2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -11.2t + 1 + t2 = 0 + 1

Reorder the terms:
-1 + 1 + -11.2t + t2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -11.2t + t2 = 0 + 1
-11.2t + t2 = 0 + 1

Combine like terms: 0 + 1 = 1
-11.2t + t2 = 1

The t term is -11.2t.  Take half its coefficient (-5.6).
Square it (31.36) and add it to both sides.

Add '31.36' to each side of the equation.
-11.2t + 31.36 + t2 = 1 + 31.36

Reorder the terms:
31.36 + -11.2t + t2 = 1 + 31.36

Combine like terms: 1 + 31.36 = 32.36
31.36 + -11.2t + t2 = 32.36

Factor a perfect square on the left side:
(t + -5.6)(t + -5.6) = 32.36

Calculate the square root of the right side: 5.688585061

Break this problem into two subproblems by setting 
(t + -5.6) equal to 5.688585061 and -5.688585061.

Subproblem 1

t + -5.6 = 5.688585061 Simplifying t + -5.6 = 5.688585061 Reorder the terms: -5.6 + t = 5.688585061 Solving -5.6 + t = 5.688585061 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5.6' to each side of the equation. -5.6 + 5.6 + t = 5.688585061 + 5.6 Combine like terms: -5.6 + 5.6 = 0.0 0.0 + t = 5.688585061 + 5.6 t = 5.688585061 + 5.6 Combine like terms: 5.688585061 + 5.6 = 11.288585061 t = 11.288585061 Simplifying t = 11.288585061

Subproblem 2

t + -5.6 = -5.688585061 Simplifying t + -5.6 = -5.688585061 Reorder the terms: -5.6 + t = -5.688585061 Solving -5.6 + t = -5.688585061 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5.6' to each side of the equation. -5.6 + 5.6 + t = -5.688585061 + 5.6 Combine like terms: -5.6 + 5.6 = 0.0 0.0 + t = -5.688585061 + 5.6 t = -5.688585061 + 5.6 Combine like terms: -5.688585061 + 5.6 = -0.088585061 t = -0.088585061 Simplifying t = -0.088585061

Solution

The solution to the problem is based on the solutions from the subproblems. t = {11.288585061, -0.088585061}

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