89=16t^2+32t

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Solution for 89=16t^2+32t equation:


Simplifying
89 = 16t2 + 32t

Reorder the terms:
89 = 32t + 16t2

Solving
89 = 32t + 16t2

Solving for variable 't'.

Reorder the terms:
89 + -32t + -16t2 = 32t + -32t + 16t2 + -16t2

Combine like terms: 32t + -32t = 0
89 + -32t + -16t2 = 0 + 16t2 + -16t2
89 + -32t + -16t2 = 16t2 + -16t2

Combine like terms: 16t2 + -16t2 = 0
89 + -32t + -16t2 = 0

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

Divide each side by '-16'.
-5.5625 + 2t + t2 = 0

Move the constant term to the right:

Add '5.5625' to each side of the equation.
-5.5625 + 2t + 5.5625 + t2 = 0 + 5.5625

Reorder the terms:
-5.5625 + 5.5625 + 2t + t2 = 0 + 5.5625

Combine like terms: -5.5625 + 5.5625 = 0.0000
0.0000 + 2t + t2 = 0 + 5.5625
2t + t2 = 0 + 5.5625

Combine like terms: 0 + 5.5625 = 5.5625
2t + t2 = 5.5625

The t term is 2t.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2t + 1 + t2 = 5.5625 + 1

Reorder the terms:
1 + 2t + t2 = 5.5625 + 1

Combine like terms: 5.5625 + 1 = 6.5625
1 + 2t + t2 = 6.5625

Factor a perfect square on the left side:
(t + 1)(t + 1) = 6.5625

Calculate the square root of the right side: 2.561737691

Break this problem into two subproblems by setting 
(t + 1) equal to 2.561737691 and -2.561737691.

Subproblem 1

t + 1 = 2.561737691 Simplifying t + 1 = 2.561737691 Reorder the terms: 1 + t = 2.561737691 Solving 1 + t = 2.561737691 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + t = 2.561737691 + -1 Combine like terms: 1 + -1 = 0 0 + t = 2.561737691 + -1 t = 2.561737691 + -1 Combine like terms: 2.561737691 + -1 = 1.561737691 t = 1.561737691 Simplifying t = 1.561737691

Subproblem 2

t + 1 = -2.561737691 Simplifying t + 1 = -2.561737691 Reorder the terms: 1 + t = -2.561737691 Solving 1 + t = -2.561737691 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + t = -2.561737691 + -1 Combine like terms: 1 + -1 = 0 0 + t = -2.561737691 + -1 t = -2.561737691 + -1 Combine like terms: -2.561737691 + -1 = -3.561737691 t = -3.561737691 Simplifying t = -3.561737691

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.561737691, -3.561737691}

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