-16t^2+16t+775=0

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Solution for -16t^2+16t+775=0 equation:


Simplifying
-16t2 + 16t + 775 = 0

Reorder the terms:
775 + 16t + -16t2 = 0

Solving
775 + 16t + -16t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-48.4375 + -1t + t2 = 0

Move the constant term to the right:

Add '48.4375' to each side of the equation.
-48.4375 + -1t + 48.4375 + t2 = 0 + 48.4375

Reorder the terms:
-48.4375 + 48.4375 + -1t + t2 = 0 + 48.4375

Combine like terms: -48.4375 + 48.4375 = 0.0000
0.0000 + -1t + t2 = 0 + 48.4375
-1t + t2 = 0 + 48.4375

Combine like terms: 0 + 48.4375 = 48.4375
-1t + t2 = 48.4375

The t term is -1t.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1t + 0.25 + t2 = 48.4375 + 0.25

Reorder the terms:
0.25 + -1t + t2 = 48.4375 + 0.25

Combine like terms: 48.4375 + 0.25 = 48.6875
0.25 + -1t + t2 = 48.6875

Factor a perfect square on the left side:
(t + -0.5)(t + -0.5) = 48.6875

Calculate the square root of the right side: 6.977642868

Break this problem into two subproblems by setting 
(t + -0.5) equal to 6.977642868 and -6.977642868.

Subproblem 1

t + -0.5 = 6.977642868 Simplifying t + -0.5 = 6.977642868 Reorder the terms: -0.5 + t = 6.977642868 Solving -0.5 + t = 6.977642868 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + t = 6.977642868 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + t = 6.977642868 + 0.5 t = 6.977642868 + 0.5 Combine like terms: 6.977642868 + 0.5 = 7.477642868 t = 7.477642868 Simplifying t = 7.477642868

Subproblem 2

t + -0.5 = -6.977642868 Simplifying t + -0.5 = -6.977642868 Reorder the terms: -0.5 + t = -6.977642868 Solving -0.5 + t = -6.977642868 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + t = -6.977642868 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + t = -6.977642868 + 0.5 t = -6.977642868 + 0.5 Combine like terms: -6.977642868 + 0.5 = -6.477642868 t = -6.477642868 Simplifying t = -6.477642868

Solution

The solution to the problem is based on the solutions from the subproblems. t = {7.477642868, -6.477642868}

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