-4.9x^2+7x+950=0

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


Simplifying
-4.9x2 + 7x + 950 = 0

Reorder the terms:
950 + 7x + -4.9x2 = 0

Solving
950 + 7x + -4.9x2 = 0

Solving for variable 'x'.

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

Divide each side by '-4.9'.
-193.877551 + -1.428571429x + x2 = 0

Move the constant term to the right:

Add '193.877551' to each side of the equation.
-193.877551 + -1.428571429x + 193.877551 + x2 = 0 + 193.877551

Reorder the terms:
-193.877551 + 193.877551 + -1.428571429x + x2 = 0 + 193.877551

Combine like terms: -193.877551 + 193.877551 = 0.000000
0.000000 + -1.428571429x + x2 = 0 + 193.877551
-1.428571429x + x2 = 0 + 193.877551

Combine like terms: 0 + 193.877551 = 193.877551
-1.428571429x + x2 = 193.877551

The x term is -1.428571429x.  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.
-1.428571429x + 0.5102040819 + x2 = 193.877551 + 0.5102040819

Reorder the terms:
0.5102040819 + -1.428571429x + x2 = 193.877551 + 0.5102040819

Combine like terms: 193.877551 + 0.5102040819 = 194.3877550819
0.5102040819 + -1.428571429x + x2 = 194.3877550819

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

Calculate the square root of the right side: 13.942300925

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

Subproblem 1

x + -0.7142857145 = 13.942300925 Simplifying x + -0.7142857145 = 13.942300925 Reorder the terms: -0.7142857145 + x = 13.942300925 Solving -0.7142857145 + x = 13.942300925 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7142857145' to each side of the equation. -0.7142857145 + 0.7142857145 + x = 13.942300925 + 0.7142857145 Combine like terms: -0.7142857145 + 0.7142857145 = 0.0000000000 0.0000000000 + x = 13.942300925 + 0.7142857145 x = 13.942300925 + 0.7142857145 Combine like terms: 13.942300925 + 0.7142857145 = 14.6565866395 x = 14.6565866395 Simplifying x = 14.6565866395

Subproblem 2

x + -0.7142857145 = -13.942300925 Simplifying x + -0.7142857145 = -13.942300925 Reorder the terms: -0.7142857145 + x = -13.942300925 Solving -0.7142857145 + x = -13.942300925 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7142857145' to each side of the equation. -0.7142857145 + 0.7142857145 + x = -13.942300925 + 0.7142857145 Combine like terms: -0.7142857145 + 0.7142857145 = 0.0000000000 0.0000000000 + x = -13.942300925 + 0.7142857145 x = -13.942300925 + 0.7142857145 Combine like terms: -13.942300925 + 0.7142857145 = -13.2280152105 x = -13.2280152105 Simplifying x = -13.2280152105

Solution

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

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