49x^2+67x+16=0

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Solution for 49x^2+67x+16=0 equation:


Simplifying
49x2 + 67x + 16 = 0

Reorder the terms:
16 + 67x + 49x2 = 0

Solving
16 + 67x + 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 + 1.367346939x + x2 = 0

Move the constant term to the right:

Add '-0.3265306122' to each side of the equation.
0.3265306122 + 1.367346939x + -0.3265306122 + x2 = 0 + -0.3265306122

Reorder the terms:
0.3265306122 + -0.3265306122 + 1.367346939x + x2 = 0 + -0.3265306122

Combine like terms: 0.3265306122 + -0.3265306122 = 0.0000000000
0.0000000000 + 1.367346939x + x2 = 0 + -0.3265306122
1.367346939x + x2 = 0 + -0.3265306122

Combine like terms: 0 + -0.3265306122 = -0.3265306122
1.367346939x + x2 = -0.3265306122

The x term is 1.367346939x.  Take half its coefficient (0.6836734695).
Square it (0.4674094129) and add it to both sides.

Add '0.4674094129' to each side of the equation.
1.367346939x + 0.4674094129 + x2 = -0.3265306122 + 0.4674094129

Reorder the terms:
0.4674094129 + 1.367346939x + x2 = -0.3265306122 + 0.4674094129

Combine like terms: -0.3265306122 + 0.4674094129 = 0.1408788007
0.4674094129 + 1.367346939x + x2 = 0.1408788007

Factor a perfect square on the left side:
(x + 0.6836734695)(x + 0.6836734695) = 0.1408788007

Calculate the square root of the right side: 0.375338248

Break this problem into two subproblems by setting 
(x + 0.6836734695) equal to 0.375338248 and -0.375338248.

Subproblem 1

x + 0.6836734695 = 0.375338248 Simplifying x + 0.6836734695 = 0.375338248 Reorder the terms: 0.6836734695 + x = 0.375338248 Solving 0.6836734695 + x = 0.375338248 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6836734695' to each side of the equation. 0.6836734695 + -0.6836734695 + x = 0.375338248 + -0.6836734695 Combine like terms: 0.6836734695 + -0.6836734695 = 0.0000000000 0.0000000000 + x = 0.375338248 + -0.6836734695 x = 0.375338248 + -0.6836734695 Combine like terms: 0.375338248 + -0.6836734695 = -0.3083352215 x = -0.3083352215 Simplifying x = -0.3083352215

Subproblem 2

x + 0.6836734695 = -0.375338248 Simplifying x + 0.6836734695 = -0.375338248 Reorder the terms: 0.6836734695 + x = -0.375338248 Solving 0.6836734695 + x = -0.375338248 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6836734695' to each side of the equation. 0.6836734695 + -0.6836734695 + x = -0.375338248 + -0.6836734695 Combine like terms: 0.6836734695 + -0.6836734695 = 0.0000000000 0.0000000000 + x = -0.375338248 + -0.6836734695 x = -0.375338248 + -0.6836734695 Combine like terms: -0.375338248 + -0.6836734695 = -1.0590117175 x = -1.0590117175 Simplifying x = -1.0590117175

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.3083352215, -1.0590117175}

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