7x^2+9x+36=0

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Solution for 7x^2+9x+36=0 equation:


Simplifying
7x2 + 9x + 36 = 0

Reorder the terms:
36 + 9x + 7x2 = 0

Solving
36 + 9x + 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'.
5.142857143 + 1.285714286x + x2 = 0

Move the constant term to the right:

Add '-5.142857143' to each side of the equation.
5.142857143 + 1.285714286x + -5.142857143 + x2 = 0 + -5.142857143

Reorder the terms:
5.142857143 + -5.142857143 + 1.285714286x + x2 = 0 + -5.142857143

Combine like terms: 5.142857143 + -5.142857143 = 0.000000000
0.000000000 + 1.285714286x + x2 = 0 + -5.142857143
1.285714286x + x2 = 0 + -5.142857143

Combine like terms: 0 + -5.142857143 = -5.142857143
1.285714286x + x2 = -5.142857143

The x term is 1.285714286x.  Take half its coefficient (0.642857143).
Square it (0.4132653063) and add it to both sides.

Add '0.4132653063' to each side of the equation.
1.285714286x + 0.4132653063 + x2 = -5.142857143 + 0.4132653063

Reorder the terms:
0.4132653063 + 1.285714286x + x2 = -5.142857143 + 0.4132653063

Combine like terms: -5.142857143 + 0.4132653063 = -4.7295918367
0.4132653063 + 1.285714286x + x2 = -4.7295918367

Factor a perfect square on the left side:
(x + 0.642857143)(x + 0.642857143) = -4.7295918367

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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