-16t^2+31t+3=0

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Solution for -16t^2+31t+3=0 equation:


Simplifying
-16t2 + 31t + 3 = 0

Reorder the terms:
3 + 31t + -16t2 = 0

Solving
3 + 31t + -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'.
-0.1875 + -1.9375t + t2 = 0

Move the constant term to the right:

Add '0.1875' to each side of the equation.
-0.1875 + -1.9375t + 0.1875 + t2 = 0 + 0.1875

Reorder the terms:
-0.1875 + 0.1875 + -1.9375t + t2 = 0 + 0.1875

Combine like terms: -0.1875 + 0.1875 = 0.0000
0.0000 + -1.9375t + t2 = 0 + 0.1875
-1.9375t + t2 = 0 + 0.1875

Combine like terms: 0 + 0.1875 = 0.1875
-1.9375t + t2 = 0.1875

The t term is -1.9375t.  Take half its coefficient (-0.96875).
Square it (0.9384765625) and add it to both sides.

Add '0.9384765625' to each side of the equation.
-1.9375t + 0.9384765625 + t2 = 0.1875 + 0.9384765625

Reorder the terms:
0.9384765625 + -1.9375t + t2 = 0.1875 + 0.9384765625

Combine like terms: 0.1875 + 0.9384765625 = 1.1259765625
0.9384765625 + -1.9375t + t2 = 1.1259765625

Factor a perfect square on the left side:
(t + -0.96875)(t + -0.96875) = 1.1259765625

Calculate the square root of the right side: 1.061120428

Break this problem into two subproblems by setting 
(t + -0.96875) equal to 1.061120428 and -1.061120428.

Subproblem 1

t + -0.96875 = 1.061120428 Simplifying t + -0.96875 = 1.061120428 Reorder the terms: -0.96875 + t = 1.061120428 Solving -0.96875 + t = 1.061120428 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.96875' to each side of the equation. -0.96875 + 0.96875 + t = 1.061120428 + 0.96875 Combine like terms: -0.96875 + 0.96875 = 0.00000 0.00000 + t = 1.061120428 + 0.96875 t = 1.061120428 + 0.96875 Combine like terms: 1.061120428 + 0.96875 = 2.029870428 t = 2.029870428 Simplifying t = 2.029870428

Subproblem 2

t + -0.96875 = -1.061120428 Simplifying t + -0.96875 = -1.061120428 Reorder the terms: -0.96875 + t = -1.061120428 Solving -0.96875 + t = -1.061120428 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.96875' to each side of the equation. -0.96875 + 0.96875 + t = -1.061120428 + 0.96875 Combine like terms: -0.96875 + 0.96875 = 0.00000 0.00000 + t = -1.061120428 + 0.96875 t = -1.061120428 + 0.96875 Combine like terms: -1.061120428 + 0.96875 = -0.092370428 t = -0.092370428 Simplifying t = -0.092370428

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.029870428, -0.092370428}

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