4.9t^2+7t-950=0

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Solution for 4.9t^2+7t-950=0 equation:


Simplifying
4.9t2 + 7t + -950 = 0

Reorder the terms:
-950 + 7t + 4.9t2 = 0

Solving
-950 + 7t + 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'.
-193.877551 + 1.428571429t + t2 = 0

Move the constant term to the right:

Add '193.877551' to each side of the equation.
-193.877551 + 1.428571429t + 193.877551 + t2 = 0 + 193.877551

Reorder the terms:
-193.877551 + 193.877551 + 1.428571429t + t2 = 0 + 193.877551

Combine like terms: -193.877551 + 193.877551 = 0.000000
0.000000 + 1.428571429t + t2 = 0 + 193.877551
1.428571429t + t2 = 0 + 193.877551

Combine like terms: 0 + 193.877551 = 193.877551
1.428571429t + t2 = 193.877551

The t term is 1.428571429t.  Take half its coefficient (0.7142857145).
Square it (0.5102040819) and add it to both sides.

Add '0.5102040819' to each side of the equation.
1.428571429t + 0.5102040819 + t2 = 193.877551 + 0.5102040819

Reorder the terms:
0.5102040819 + 1.428571429t + t2 = 193.877551 + 0.5102040819

Combine like terms: 193.877551 + 0.5102040819 = 194.3877550819
0.5102040819 + 1.428571429t + t2 = 194.3877550819

Factor a perfect square on the left side:
(t + 0.7142857145)(t + 0.7142857145) = 194.3877550819

Calculate the square root of the right side: 13.942300925

Break this problem into two subproblems by setting 
(t + 0.7142857145) equal to 13.942300925 and -13.942300925.

Subproblem 1

t + 0.7142857145 = 13.942300925 Simplifying t + 0.7142857145 = 13.942300925 Reorder the terms: 0.7142857145 + t = 13.942300925 Solving 0.7142857145 + t = 13.942300925 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.7142857145' to each side of the equation. 0.7142857145 + -0.7142857145 + t = 13.942300925 + -0.7142857145 Combine like terms: 0.7142857145 + -0.7142857145 = 0.0000000000 0.0000000000 + t = 13.942300925 + -0.7142857145 t = 13.942300925 + -0.7142857145 Combine like terms: 13.942300925 + -0.7142857145 = 13.2280152105 t = 13.2280152105 Simplifying t = 13.2280152105

Subproblem 2

t + 0.7142857145 = -13.942300925 Simplifying t + 0.7142857145 = -13.942300925 Reorder the terms: 0.7142857145 + t = -13.942300925 Solving 0.7142857145 + t = -13.942300925 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.7142857145' to each side of the equation. 0.7142857145 + -0.7142857145 + t = -13.942300925 + -0.7142857145 Combine like terms: 0.7142857145 + -0.7142857145 = 0.0000000000 0.0000000000 + t = -13.942300925 + -0.7142857145 t = -13.942300925 + -0.7142857145 Combine like terms: -13.942300925 + -0.7142857145 = -14.6565866395 t = -14.6565866395 Simplifying t = -14.6565866395

Solution

The solution to the problem is based on the solutions from the subproblems. t = {13.2280152105, -14.6565866395}

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