49x^2+-88x+16=0

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Solution for 49x^2+-88x+16=0 equation:


Simplifying
49x2 + -88x + 16 = 0

Reorder the terms:
16 + -88x + 49x2 = 0

Solving
16 + -88x + 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'.
0.3265306122 + -1.795918367x + x2 = 0

Move the constant term to the right:

Add '-0.3265306122' to each side of the equation.
0.3265306122 + -1.795918367x + -0.3265306122 + x2 = 0 + -0.3265306122

Reorder the terms:
0.3265306122 + -0.3265306122 + -1.795918367x + x2 = 0 + -0.3265306122

Combine like terms: 0.3265306122 + -0.3265306122 = 0.0000000000
0.0000000000 + -1.795918367x + x2 = 0 + -0.3265306122
-1.795918367x + x2 = 0 + -0.3265306122

Combine like terms: 0 + -0.3265306122 = -0.3265306122
-1.795918367x + x2 = -0.3265306122

The x term is -1.795918367x.  Take half its coefficient (-0.8979591835).
Square it (0.8063306952) and add it to both sides.

Add '0.8063306952' to each side of the equation.
-1.795918367x + 0.8063306952 + x2 = -0.3265306122 + 0.8063306952

Reorder the terms:
0.8063306952 + -1.795918367x + x2 = -0.3265306122 + 0.8063306952

Combine like terms: -0.3265306122 + 0.8063306952 = 0.479800083
0.8063306952 + -1.795918367x + x2 = 0.479800083

Factor a perfect square on the left side:
(x + -0.8979591835)(x + -0.8979591835) = 0.479800083

Calculate the square root of the right side: 0.69267603

Break this problem into two subproblems by setting 
(x + -0.8979591835) equal to 0.69267603 and -0.69267603.

Subproblem 1

x + -0.8979591835 = 0.69267603 Simplifying x + -0.8979591835 = 0.69267603 Reorder the terms: -0.8979591835 + x = 0.69267603 Solving -0.8979591835 + x = 0.69267603 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8979591835' to each side of the equation. -0.8979591835 + 0.8979591835 + x = 0.69267603 + 0.8979591835 Combine like terms: -0.8979591835 + 0.8979591835 = 0.0000000000 0.0000000000 + x = 0.69267603 + 0.8979591835 x = 0.69267603 + 0.8979591835 Combine like terms: 0.69267603 + 0.8979591835 = 1.5906352135 x = 1.5906352135 Simplifying x = 1.5906352135

Subproblem 2

x + -0.8979591835 = -0.69267603 Simplifying x + -0.8979591835 = -0.69267603 Reorder the terms: -0.8979591835 + x = -0.69267603 Solving -0.8979591835 + x = -0.69267603 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8979591835' to each side of the equation. -0.8979591835 + 0.8979591835 + x = -0.69267603 + 0.8979591835 Combine like terms: -0.8979591835 + 0.8979591835 = 0.0000000000 0.0000000000 + x = -0.69267603 + 0.8979591835 x = -0.69267603 + 0.8979591835 Combine like terms: -0.69267603 + 0.8979591835 = 0.2052831535 x = 0.2052831535 Simplifying x = 0.2052831535

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.5906352135, 0.2052831535}

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