16t^2+46t+9=0

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Solution for 16t^2+46t+9=0 equation:


Simplifying
16t2 + 46t + 9 = 0

Reorder the terms:
9 + 46t + 16t2 = 0

Solving
9 + 46t + 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'.
0.5625 + 2.875t + t2 = 0

Move the constant term to the right:

Add '-0.5625' to each side of the equation.
0.5625 + 2.875t + -0.5625 + t2 = 0 + -0.5625

Reorder the terms:
0.5625 + -0.5625 + 2.875t + t2 = 0 + -0.5625

Combine like terms: 0.5625 + -0.5625 = 0.0000
0.0000 + 2.875t + t2 = 0 + -0.5625
2.875t + t2 = 0 + -0.5625

Combine like terms: 0 + -0.5625 = -0.5625
2.875t + t2 = -0.5625

The t term is 2.875t.  Take half its coefficient (1.4375).
Square it (2.06640625) and add it to both sides.

Add '2.06640625' to each side of the equation.
2.875t + 2.06640625 + t2 = -0.5625 + 2.06640625

Reorder the terms:
2.06640625 + 2.875t + t2 = -0.5625 + 2.06640625

Combine like terms: -0.5625 + 2.06640625 = 1.50390625
2.06640625 + 2.875t + t2 = 1.50390625

Factor a perfect square on the left side:
(t + 1.4375)(t + 1.4375) = 1.50390625

Calculate the square root of the right side: 1.226338554

Break this problem into two subproblems by setting 
(t + 1.4375) equal to 1.226338554 and -1.226338554.

Subproblem 1

t + 1.4375 = 1.226338554 Simplifying t + 1.4375 = 1.226338554 Reorder the terms: 1.4375 + t = 1.226338554 Solving 1.4375 + t = 1.226338554 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1.4375' to each side of the equation. 1.4375 + -1.4375 + t = 1.226338554 + -1.4375 Combine like terms: 1.4375 + -1.4375 = 0.0000 0.0000 + t = 1.226338554 + -1.4375 t = 1.226338554 + -1.4375 Combine like terms: 1.226338554 + -1.4375 = -0.211161446 t = -0.211161446 Simplifying t = -0.211161446

Subproblem 2

t + 1.4375 = -1.226338554 Simplifying t + 1.4375 = -1.226338554 Reorder the terms: 1.4375 + t = -1.226338554 Solving 1.4375 + t = -1.226338554 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1.4375' to each side of the equation. 1.4375 + -1.4375 + t = -1.226338554 + -1.4375 Combine like terms: 1.4375 + -1.4375 = 0.0000 0.0000 + t = -1.226338554 + -1.4375 t = -1.226338554 + -1.4375 Combine like terms: -1.226338554 + -1.4375 = -2.663838554 t = -2.663838554 Simplifying t = -2.663838554

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-0.211161446, -2.663838554}

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