-49t^2+225t+30=0

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Solution for -49t^2+225t+30=0 equation:


Simplifying
-49t2 + 225t + 30 = 0

Reorder the terms:
30 + 225t + -49t2 = 0

Solving
30 + 225t + -49t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-49 the coefficient of the squared term: 

Divide each side by '-49'.
-0.612244898 + -4.591836735t + t2 = 0

Move the constant term to the right:

Add '0.612244898' to each side of the equation.
-0.612244898 + -4.591836735t + 0.612244898 + t2 = 0 + 0.612244898

Reorder the terms:
-0.612244898 + 0.612244898 + -4.591836735t + t2 = 0 + 0.612244898

Combine like terms: -0.612244898 + 0.612244898 = 0.000000000
0.000000000 + -4.591836735t + t2 = 0 + 0.612244898
-4.591836735t + t2 = 0 + 0.612244898

Combine like terms: 0 + 0.612244898 = 0.612244898
-4.591836735t + t2 = 0.612244898

The t term is -4.591836735t.  Take half its coefficient (-2.295918368).
Square it (5.271241153) and add it to both sides.

Add '5.271241153' to each side of the equation.
-4.591836735t + 5.271241153 + t2 = 0.612244898 + 5.271241153

Reorder the terms:
5.271241153 + -4.591836735t + t2 = 0.612244898 + 5.271241153

Combine like terms: 0.612244898 + 5.271241153 = 5.883486051
5.271241153 + -4.591836735t + t2 = 5.883486051

Factor a perfect square on the left side:
(t + -2.295918368)(t + -2.295918368) = 5.883486051

Calculate the square root of the right side: 2.425589836

Break this problem into two subproblems by setting 
(t + -2.295918368) equal to 2.425589836 and -2.425589836.

Subproblem 1

t + -2.295918368 = 2.425589836 Simplifying t + -2.295918368 = 2.425589836 Reorder the terms: -2.295918368 + t = 2.425589836 Solving -2.295918368 + t = 2.425589836 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.295918368' to each side of the equation. -2.295918368 + 2.295918368 + t = 2.425589836 + 2.295918368 Combine like terms: -2.295918368 + 2.295918368 = 0.000000000 0.000000000 + t = 2.425589836 + 2.295918368 t = 2.425589836 + 2.295918368 Combine like terms: 2.425589836 + 2.295918368 = 4.721508204 t = 4.721508204 Simplifying t = 4.721508204

Subproblem 2

t + -2.295918368 = -2.425589836 Simplifying t + -2.295918368 = -2.425589836 Reorder the terms: -2.295918368 + t = -2.425589836 Solving -2.295918368 + t = -2.425589836 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.295918368' to each side of the equation. -2.295918368 + 2.295918368 + t = -2.425589836 + 2.295918368 Combine like terms: -2.295918368 + 2.295918368 = 0.000000000 0.000000000 + t = -2.425589836 + 2.295918368 t = -2.425589836 + 2.295918368 Combine like terms: -2.425589836 + 2.295918368 = -0.129671468 t = -0.129671468 Simplifying t = -0.129671468

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.721508204, -0.129671468}

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