-16t^2+27t+2.5=3.5

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Solution for -16t^2+27t+2.5=3.5 equation:


Simplifying
-16t2 + 27t + 2.5 = 3.5

Reorder the terms:
2.5 + 27t + -16t2 = 3.5

Solving
2.5 + 27t + -16t2 = 3.5

Solving for variable 't'.

Reorder the terms:
2.5 + -3.5 + 27t + -16t2 = 3.5 + -3.5

Combine like terms: 2.5 + -3.5 = -1
-1 + 27t + -16t2 = 3.5 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
-1 + 27t + -16t2 = 0.0

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

Divide each side by '-16'.
0.0625 + -1.6875t + t2 = 0.0

Move the constant term to the right:

Add '-0.0625' to each side of the equation.
0.0625 + -1.6875t + -0.0625 + t2 = 0.0 + -0.0625

Reorder the terms:
0.0625 + -0.0625 + -1.6875t + t2 = 0.0 + -0.0625

Combine like terms: 0.0625 + -0.0625 = 0.0000
0.0000 + -1.6875t + t2 = 0.0 + -0.0625
-1.6875t + t2 = 0.0 + -0.0625

Combine like terms: 0.0 + -0.0625 = -0.0625
-1.6875t + t2 = -0.0625

The t term is -1.6875t.  Take half its coefficient (-0.84375).
Square it (0.7119140625) and add it to both sides.

Add '0.7119140625' to each side of the equation.
-1.6875t + 0.7119140625 + t2 = -0.0625 + 0.7119140625

Reorder the terms:
0.7119140625 + -1.6875t + t2 = -0.0625 + 0.7119140625

Combine like terms: -0.0625 + 0.7119140625 = 0.6494140625
0.7119140625 + -1.6875t + t2 = 0.6494140625

Factor a perfect square on the left side:
(t + -0.84375)(t + -0.84375) = 0.6494140625

Calculate the square root of the right side: 0.80586231

Break this problem into two subproblems by setting 
(t + -0.84375) equal to 0.80586231 and -0.80586231.

Subproblem 1

t + -0.84375 = 0.80586231 Simplifying t + -0.84375 = 0.80586231 Reorder the terms: -0.84375 + t = 0.80586231 Solving -0.84375 + t = 0.80586231 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.84375' to each side of the equation. -0.84375 + 0.84375 + t = 0.80586231 + 0.84375 Combine like terms: -0.84375 + 0.84375 = 0.00000 0.00000 + t = 0.80586231 + 0.84375 t = 0.80586231 + 0.84375 Combine like terms: 0.80586231 + 0.84375 = 1.64961231 t = 1.64961231 Simplifying t = 1.64961231

Subproblem 2

t + -0.84375 = -0.80586231 Simplifying t + -0.84375 = -0.80586231 Reorder the terms: -0.84375 + t = -0.80586231 Solving -0.84375 + t = -0.80586231 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.84375' to each side of the equation. -0.84375 + 0.84375 + t = -0.80586231 + 0.84375 Combine like terms: -0.84375 + 0.84375 = 0.00000 0.00000 + t = -0.80586231 + 0.84375 t = -0.80586231 + 0.84375 Combine like terms: -0.80586231 + 0.84375 = 0.03788769 t = 0.03788769 Simplifying t = 0.03788769

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.64961231, 0.03788769}

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