7x^2+5x+16=0

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Solution for 7x^2+5x+16=0 equation:


Simplifying
7x2 + 5x + 16 = 0

Reorder the terms:
16 + 5x + 7x2 = 0

Solving
16 + 5x + 7x2 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
2.285714286 + 0.7142857143x + x2 = 0

Move the constant term to the right:

Add '-2.285714286' to each side of the equation.
2.285714286 + 0.7142857143x + -2.285714286 + x2 = 0 + -2.285714286

Reorder the terms:
2.285714286 + -2.285714286 + 0.7142857143x + x2 = 0 + -2.285714286

Combine like terms: 2.285714286 + -2.285714286 = 0.000000000
0.000000000 + 0.7142857143x + x2 = 0 + -2.285714286
0.7142857143x + x2 = 0 + -2.285714286

Combine like terms: 0 + -2.285714286 = -2.285714286
0.7142857143x + x2 = -2.285714286

The x term is 0.7142857143x.  Take half its coefficient (0.3571428572).
Square it (0.1275510204) and add it to both sides.

Add '0.1275510204' to each side of the equation.
0.7142857143x + 0.1275510204 + x2 = -2.285714286 + 0.1275510204

Reorder the terms:
0.1275510204 + 0.7142857143x + x2 = -2.285714286 + 0.1275510204

Combine like terms: -2.285714286 + 0.1275510204 = -2.1581632656
0.1275510204 + 0.7142857143x + x2 = -2.1581632656

Factor a perfect square on the left side:
(x + 0.3571428572)(x + 0.3571428572) = -2.1581632656

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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