(14x^2+7x+9)+(7x^2+9x+9)=

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Solution for (14x^2+7x+9)+(7x^2+9x+9)= equation:


Simplifying
(14x2 + 7x + 9) + (7x2 + 9x + 9) = 0

Reorder the terms:
(9 + 7x + 14x2) + (7x2 + 9x + 9) = 0

Remove parenthesis around (9 + 7x + 14x2)
9 + 7x + 14x2 + (7x2 + 9x + 9) = 0

Reorder the terms:
9 + 7x + 14x2 + (9 + 9x + 7x2) = 0

Remove parenthesis around (9 + 9x + 7x2)
9 + 7x + 14x2 + 9 + 9x + 7x2 = 0

Reorder the terms:
9 + 9 + 7x + 9x + 14x2 + 7x2 = 0

Combine like terms: 9 + 9 = 18
18 + 7x + 9x + 14x2 + 7x2 = 0

Combine like terms: 7x + 9x = 16x
18 + 16x + 14x2 + 7x2 = 0

Combine like terms: 14x2 + 7x2 = 21x2
18 + 16x + 21x2 = 0

Solving
18 + 16x + 21x2 = 0

Solving for variable 'x'.

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

Divide each side by '21'.
0.8571428571 + 0.7619047619x + x2 = 0

Move the constant term to the right:

Add '-0.8571428571' to each side of the equation.
0.8571428571 + 0.7619047619x + -0.8571428571 + x2 = 0 + -0.8571428571

Reorder the terms:
0.8571428571 + -0.8571428571 + 0.7619047619x + x2 = 0 + -0.8571428571

Combine like terms: 0.8571428571 + -0.8571428571 = 0.0000000000
0.0000000000 + 0.7619047619x + x2 = 0 + -0.8571428571
0.7619047619x + x2 = 0 + -0.8571428571

Combine like terms: 0 + -0.8571428571 = -0.8571428571
0.7619047619x + x2 = -0.8571428571

The x term is 0.7619047619x.  Take half its coefficient (0.380952381).
Square it (0.1451247166) and add it to both sides.

Add '0.1451247166' to each side of the equation.
0.7619047619x + 0.1451247166 + x2 = -0.8571428571 + 0.1451247166

Reorder the terms:
0.1451247166 + 0.7619047619x + x2 = -0.8571428571 + 0.1451247166

Combine like terms: -0.8571428571 + 0.1451247166 = -0.7120181405
0.1451247166 + 0.7619047619x + x2 = -0.7120181405

Factor a perfect square on the left side:
(x + 0.380952381)(x + 0.380952381) = -0.7120181405

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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