7x^2+23x+20=0

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Solution for 7x^2+23x+20=0 equation:


Simplifying
7x2 + 23x + 20 = 0

Reorder the terms:
20 + 23x + 7x2 = 0

Solving
20 + 23x + 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'.
2.857142857 + 3.285714286x + x2 = 0

Move the constant term to the right:

Add '-2.857142857' to each side of the equation.
2.857142857 + 3.285714286x + -2.857142857 + x2 = 0 + -2.857142857

Reorder the terms:
2.857142857 + -2.857142857 + 3.285714286x + x2 = 0 + -2.857142857

Combine like terms: 2.857142857 + -2.857142857 = 0.000000000
0.000000000 + 3.285714286x + x2 = 0 + -2.857142857
3.285714286x + x2 = 0 + -2.857142857

Combine like terms: 0 + -2.857142857 = -2.857142857
3.285714286x + x2 = -2.857142857

The x term is 3.285714286x.  Take half its coefficient (1.642857143).
Square it (2.698979592) and add it to both sides.

Add '2.698979592' to each side of the equation.
3.285714286x + 2.698979592 + x2 = -2.857142857 + 2.698979592

Reorder the terms:
2.698979592 + 3.285714286x + x2 = -2.857142857 + 2.698979592

Combine like terms: -2.857142857 + 2.698979592 = -0.158163265
2.698979592 + 3.285714286x + x2 = -0.158163265

Factor a perfect square on the left side:
(x + 1.642857143)(x + 1.642857143) = -0.158163265

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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