(2x+5)-49(3.14)x^2=0

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Solution for (2x+5)-49(3.14)x^2=0 equation:


Simplifying
(2x + 5) + -49(3.14) * x2 = 0

Reorder the terms:
(5 + 2x) + -49(3.14) * x2 = 0

Remove parenthesis around (5 + 2x)
5 + 2x + -49(3.14) * x2 = 0

Multiply -49 * 3.14
5 + 2x + -153.86x2 = 0

Solving
5 + 2x + -153.86x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-153.86 the coefficient of the squared term: 

Divide each side by '-153.86'.
-0.03249707526 + -0.01299883011x + x2 = 0

Move the constant term to the right:

Add '0.03249707526' to each side of the equation.
-0.03249707526 + -0.01299883011x + 0.03249707526 + x2 = 0 + 0.03249707526

Reorder the terms:
-0.03249707526 + 0.03249707526 + -0.01299883011x + x2 = 0 + 0.03249707526

Combine like terms: -0.03249707526 + 0.03249707526 = 0.00000000000
0.00000000000 + -0.01299883011x + x2 = 0 + 0.03249707526
-0.01299883011x + x2 = 0 + 0.03249707526

Combine like terms: 0 + 0.03249707526 = 0.03249707526
-0.01299883011x + x2 = 0.03249707526

The x term is -0.01299883011x.  Take half its coefficient (-0.006499415055).
Square it (0.00004224239606) and add it to both sides.

Add '0.00004224239606' to each side of the equation.
-0.01299883011x + 0.00004224239606 + x2 = 0.03249707526 + 0.00004224239606

Reorder the terms:
0.00004224239606 + -0.01299883011x + x2 = 0.03249707526 + 0.00004224239606

Combine like terms: 0.03249707526 + 0.00004224239606 = 0.03253931765606
0.00004224239606 + -0.01299883011x + x2 = 0.03253931765606

Factor a perfect square on the left side:
(x + -0.006499415055)(x + -0.006499415055) = 0.03253931765606

Calculate the square root of the right side: 0.180386578

Break this problem into two subproblems by setting 
(x + -0.006499415055) equal to 0.180386578 and -0.180386578.

Subproblem 1

x + -0.006499415055 = 0.180386578 Simplifying x + -0.006499415055 = 0.180386578 Reorder the terms: -0.006499415055 + x = 0.180386578 Solving -0.006499415055 + x = 0.180386578 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.006499415055' to each side of the equation. -0.006499415055 + 0.006499415055 + x = 0.180386578 + 0.006499415055 Combine like terms: -0.006499415055 + 0.006499415055 = 0.000000000000 0.000000000000 + x = 0.180386578 + 0.006499415055 x = 0.180386578 + 0.006499415055 Combine like terms: 0.180386578 + 0.006499415055 = 0.186885993055 x = 0.186885993055 Simplifying x = 0.186885993055

Subproblem 2

x + -0.006499415055 = -0.180386578 Simplifying x + -0.006499415055 = -0.180386578 Reorder the terms: -0.006499415055 + x = -0.180386578 Solving -0.006499415055 + x = -0.180386578 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.006499415055' to each side of the equation. -0.006499415055 + 0.006499415055 + x = -0.180386578 + 0.006499415055 Combine like terms: -0.006499415055 + 0.006499415055 = 0.000000000000 0.000000000000 + x = -0.180386578 + 0.006499415055 x = -0.180386578 + 0.006499415055 Combine like terms: -0.180386578 + 0.006499415055 = -0.173887162945 x = -0.173887162945 Simplifying x = -0.173887162945

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.186885993055, -0.173887162945}

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