-4.9t^2+32t+40=0

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Solution for -4.9t^2+32t+40=0 equation:


Simplifying
-4.9t2 + 32t + 40 = 0

Reorder the terms:
40 + 32t + -4.9t2 = 0

Solving
40 + 32t + -4.9t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-4.9 the coefficient of the squared term: 

Divide each side by '-4.9'.
-8.163265306 + -6.530612245t + t2 = 0

Move the constant term to the right:

Add '8.163265306' to each side of the equation.
-8.163265306 + -6.530612245t + 8.163265306 + t2 = 0 + 8.163265306

Reorder the terms:
-8.163265306 + 8.163265306 + -6.530612245t + t2 = 0 + 8.163265306

Combine like terms: -8.163265306 + 8.163265306 = 0.000000000
0.000000000 + -6.530612245t + t2 = 0 + 8.163265306
-6.530612245t + t2 = 0 + 8.163265306

Combine like terms: 0 + 8.163265306 = 8.163265306
-6.530612245t + t2 = 8.163265306

The t term is -6.530612245t.  Take half its coefficient (-3.265306123).
Square it (10.66222408) and add it to both sides.

Add '10.66222408' to each side of the equation.
-6.530612245t + 10.66222408 + t2 = 8.163265306 + 10.66222408

Reorder the terms:
10.66222408 + -6.530612245t + t2 = 8.163265306 + 10.66222408

Combine like terms: 8.163265306 + 10.66222408 = 18.825489386
10.66222408 + -6.530612245t + t2 = 18.825489386

Factor a perfect square on the left side:
(t + -3.265306123)(t + -3.265306123) = 18.825489386

Calculate the square root of the right side: 4.338835026

Break this problem into two subproblems by setting 
(t + -3.265306123) equal to 4.338835026 and -4.338835026.

Subproblem 1

t + -3.265306123 = 4.338835026 Simplifying t + -3.265306123 = 4.338835026 Reorder the terms: -3.265306123 + t = 4.338835026 Solving -3.265306123 + t = 4.338835026 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.265306123' to each side of the equation. -3.265306123 + 3.265306123 + t = 4.338835026 + 3.265306123 Combine like terms: -3.265306123 + 3.265306123 = 0.000000000 0.000000000 + t = 4.338835026 + 3.265306123 t = 4.338835026 + 3.265306123 Combine like terms: 4.338835026 + 3.265306123 = 7.604141149 t = 7.604141149 Simplifying t = 7.604141149

Subproblem 2

t + -3.265306123 = -4.338835026 Simplifying t + -3.265306123 = -4.338835026 Reorder the terms: -3.265306123 + t = -4.338835026 Solving -3.265306123 + t = -4.338835026 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.265306123' to each side of the equation. -3.265306123 + 3.265306123 + t = -4.338835026 + 3.265306123 Combine like terms: -3.265306123 + 3.265306123 = 0.000000000 0.000000000 + t = -4.338835026 + 3.265306123 t = -4.338835026 + 3.265306123 Combine like terms: -4.338835026 + 3.265306123 = -1.073528903 t = -1.073528903 Simplifying t = -1.073528903

Solution

The solution to the problem is based on the solutions from the subproblems. t = {7.604141149, -1.073528903}

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