-16t^2+22t+5=0

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Solution for -16t^2+22t+5=0 equation:


Simplifying
-16t2 + 22t + 5 = 0

Reorder the terms:
5 + 22t + -16t2 = 0

Solving
5 + 22t + -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'.
-0.3125 + -1.375t + t2 = 0

Move the constant term to the right:

Add '0.3125' to each side of the equation.
-0.3125 + -1.375t + 0.3125 + t2 = 0 + 0.3125

Reorder the terms:
-0.3125 + 0.3125 + -1.375t + t2 = 0 + 0.3125

Combine like terms: -0.3125 + 0.3125 = 0.0000
0.0000 + -1.375t + t2 = 0 + 0.3125
-1.375t + t2 = 0 + 0.3125

Combine like terms: 0 + 0.3125 = 0.3125
-1.375t + t2 = 0.3125

The t term is -1.375t.  Take half its coefficient (-0.6875).
Square it (0.47265625) and add it to both sides.

Add '0.47265625' to each side of the equation.
-1.375t + 0.47265625 + t2 = 0.3125 + 0.47265625

Reorder the terms:
0.47265625 + -1.375t + t2 = 0.3125 + 0.47265625

Combine like terms: 0.3125 + 0.47265625 = 0.78515625
0.47265625 + -1.375t + t2 = 0.78515625

Factor a perfect square on the left side:
(t + -0.6875)(t + -0.6875) = 0.78515625

Calculate the square root of the right side: 0.88609043

Break this problem into two subproblems by setting 
(t + -0.6875) equal to 0.88609043 and -0.88609043.

Subproblem 1

t + -0.6875 = 0.88609043 Simplifying t + -0.6875 = 0.88609043 Reorder the terms: -0.6875 + t = 0.88609043 Solving -0.6875 + t = 0.88609043 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.6875' to each side of the equation. -0.6875 + 0.6875 + t = 0.88609043 + 0.6875 Combine like terms: -0.6875 + 0.6875 = 0.0000 0.0000 + t = 0.88609043 + 0.6875 t = 0.88609043 + 0.6875 Combine like terms: 0.88609043 + 0.6875 = 1.57359043 t = 1.57359043 Simplifying t = 1.57359043

Subproblem 2

t + -0.6875 = -0.88609043 Simplifying t + -0.6875 = -0.88609043 Reorder the terms: -0.6875 + t = -0.88609043 Solving -0.6875 + t = -0.88609043 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.6875' to each side of the equation. -0.6875 + 0.6875 + t = -0.88609043 + 0.6875 Combine like terms: -0.6875 + 0.6875 = 0.0000 0.0000 + t = -0.88609043 + 0.6875 t = -0.88609043 + 0.6875 Combine like terms: -0.88609043 + 0.6875 = -0.19859043 t = -0.19859043 Simplifying t = -0.19859043

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.57359043, -0.19859043}

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