7x(x)+6x+9=0

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Solution for 7x(x)+6x+9=0 equation:


Simplifying
7x(x) + 6x + 9 = 0

Multiply x * x
7x2 + 6x + 9 = 0

Reorder the terms:
9 + 6x + 7x2 = 0

Solving
9 + 6x + 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'.
1.285714286 + 0.8571428571x + x2 = 0

Move the constant term to the right:

Add '-1.285714286' to each side of the equation.
1.285714286 + 0.8571428571x + -1.285714286 + x2 = 0 + -1.285714286

Reorder the terms:
1.285714286 + -1.285714286 + 0.8571428571x + x2 = 0 + -1.285714286

Combine like terms: 1.285714286 + -1.285714286 = 0.000000000
0.000000000 + 0.8571428571x + x2 = 0 + -1.285714286
0.8571428571x + x2 = 0 + -1.285714286

Combine like terms: 0 + -1.285714286 = -1.285714286
0.8571428571x + x2 = -1.285714286

The x term is 0.8571428571x.  Take half its coefficient (0.4285714286).
Square it (0.1836734694) and add it to both sides.

Add '0.1836734694' to each side of the equation.
0.8571428571x + 0.1836734694 + x2 = -1.285714286 + 0.1836734694

Reorder the terms:
0.1836734694 + 0.8571428571x + x2 = -1.285714286 + 0.1836734694

Combine like terms: -1.285714286 + 0.1836734694 = -1.1020408166
0.1836734694 + 0.8571428571x + x2 = -1.1020408166

Factor a perfect square on the left side:
(x + 0.4285714286)(x + 0.4285714286) = -1.1020408166

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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