49x^2+28x+2=0

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Solution for 49x^2+28x+2=0 equation:


Simplifying
49x2 + 28x + 2 = 0

Reorder the terms:
2 + 28x + 49x2 = 0

Solving
2 + 28x + 49x2 = 0

Solving for variable 'x'.

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

Divide each side by '49'.
0.04081632653 + 0.5714285714x + x2 = 0

Move the constant term to the right:

Add '-0.04081632653' to each side of the equation.
0.04081632653 + 0.5714285714x + -0.04081632653 + x2 = 0 + -0.04081632653

Reorder the terms:
0.04081632653 + -0.04081632653 + 0.5714285714x + x2 = 0 + -0.04081632653

Combine like terms: 0.04081632653 + -0.04081632653 = 0.00000000000
0.00000000000 + 0.5714285714x + x2 = 0 + -0.04081632653
0.5714285714x + x2 = 0 + -0.04081632653

Combine like terms: 0 + -0.04081632653 = -0.04081632653
0.5714285714x + x2 = -0.04081632653

The x term is 0.5714285714x.  Take half its coefficient (0.2857142857).
Square it (0.08163265305) and add it to both sides.

Add '0.08163265305' to each side of the equation.
0.5714285714x + 0.08163265305 + x2 = -0.04081632653 + 0.08163265305

Reorder the terms:
0.08163265305 + 0.5714285714x + x2 = -0.04081632653 + 0.08163265305

Combine like terms: -0.04081632653 + 0.08163265305 = 0.04081632652
0.08163265305 + 0.5714285714x + x2 = 0.04081632652

Factor a perfect square on the left side:
(x + 0.2857142857)(x + 0.2857142857) = 0.04081632652

Calculate the square root of the right side: 0.202030509

Break this problem into two subproblems by setting 
(x + 0.2857142857) equal to 0.202030509 and -0.202030509.

Subproblem 1

x + 0.2857142857 = 0.202030509 Simplifying x + 0.2857142857 = 0.202030509 Reorder the terms: 0.2857142857 + x = 0.202030509 Solving 0.2857142857 + x = 0.202030509 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2857142857' to each side of the equation. 0.2857142857 + -0.2857142857 + x = 0.202030509 + -0.2857142857 Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000 0.0000000000 + x = 0.202030509 + -0.2857142857 x = 0.202030509 + -0.2857142857 Combine like terms: 0.202030509 + -0.2857142857 = -0.0836837767 x = -0.0836837767 Simplifying x = -0.0836837767

Subproblem 2

x + 0.2857142857 = -0.202030509 Simplifying x + 0.2857142857 = -0.202030509 Reorder the terms: 0.2857142857 + x = -0.202030509 Solving 0.2857142857 + x = -0.202030509 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2857142857' to each side of the equation. 0.2857142857 + -0.2857142857 + x = -0.202030509 + -0.2857142857 Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000 0.0000000000 + x = -0.202030509 + -0.2857142857 x = -0.202030509 + -0.2857142857 Combine like terms: -0.202030509 + -0.2857142857 = -0.4877447947 x = -0.4877447947 Simplifying x = -0.4877447947

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.0836837767, -0.4877447947}

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