(9x+25)+(3x-1)(3x+1)-2x(x+4)=(8x-1)

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Solution for (9x+25)+(3x-1)(3x+1)-2x(x+4)=(8x-1) equation:


Simplifying
(9x + 25) + (3x + -1)(3x + 1) + -2x(x + 4) = (8x + -1)

Reorder the terms:
(25 + 9x) + (3x + -1)(3x + 1) + -2x(x + 4) = (8x + -1)

Remove parenthesis around (25 + 9x)
25 + 9x + (3x + -1)(3x + 1) + -2x(x + 4) = (8x + -1)

Reorder the terms:
25 + 9x + (-1 + 3x)(3x + 1) + -2x(x + 4) = (8x + -1)

Reorder the terms:
25 + 9x + (-1 + 3x)(1 + 3x) + -2x(x + 4) = (8x + -1)

Multiply (-1 + 3x) * (1 + 3x)
25 + 9x + (-1(1 + 3x) + 3x * (1 + 3x)) + -2x(x + 4) = (8x + -1)
25 + 9x + ((1 * -1 + 3x * -1) + 3x * (1 + 3x)) + -2x(x + 4) = (8x + -1)
25 + 9x + ((-1 + -3x) + 3x * (1 + 3x)) + -2x(x + 4) = (8x + -1)
25 + 9x + (-1 + -3x + (1 * 3x + 3x * 3x)) + -2x(x + 4) = (8x + -1)
25 + 9x + (-1 + -3x + (3x + 9x2)) + -2x(x + 4) = (8x + -1)

Combine like terms: -3x + 3x = 0
25 + 9x + (-1 + 0 + 9x2) + -2x(x + 4) = (8x + -1)
25 + 9x + (-1 + 9x2) + -2x(x + 4) = (8x + -1)

Reorder the terms:
25 + 9x + -1 + 9x2 + -2x(4 + x) = (8x + -1)
25 + 9x + -1 + 9x2 + (4 * -2x + x * -2x) = (8x + -1)
25 + 9x + -1 + 9x2 + (-8x + -2x2) = (8x + -1)

Reorder the terms:
25 + -1 + 9x + -8x + 9x2 + -2x2 = (8x + -1)

Combine like terms: 25 + -1 = 24
24 + 9x + -8x + 9x2 + -2x2 = (8x + -1)

Combine like terms: 9x + -8x = 1x
24 + 1x + 9x2 + -2x2 = (8x + -1)

Combine like terms: 9x2 + -2x2 = 7x2
24 + 1x + 7x2 = (8x + -1)

Reorder the terms:
24 + 1x + 7x2 = (-1 + 8x)

Remove parenthesis around (-1 + 8x)
24 + 1x + 7x2 = -1 + 8x

Solving
24 + 1x + 7x2 = -1 + 8x

Solving for variable 'x'.

Reorder the terms:
24 + 1 + 1x + -8x + 7x2 = -1 + 8x + 1 + -8x

Combine like terms: 24 + 1 = 25
25 + 1x + -8x + 7x2 = -1 + 8x + 1 + -8x

Combine like terms: 1x + -8x = -7x
25 + -7x + 7x2 = -1 + 8x + 1 + -8x

Reorder the terms:
25 + -7x + 7x2 = -1 + 1 + 8x + -8x

Combine like terms: -1 + 1 = 0
25 + -7x + 7x2 = 0 + 8x + -8x
25 + -7x + 7x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
25 + -7x + 7x2 = 0

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

Divide each side by '7'.
3.571428571 + -1x + x2 = 0

Move the constant term to the right:

Add '-3.571428571' to each side of the equation.
3.571428571 + -1x + -3.571428571 + x2 = 0 + -3.571428571

Reorder the terms:
3.571428571 + -3.571428571 + -1x + x2 = 0 + -3.571428571

Combine like terms: 3.571428571 + -3.571428571 = 0.000000000
0.000000000 + -1x + x2 = 0 + -3.571428571
-1x + x2 = 0 + -3.571428571

Combine like terms: 0 + -3.571428571 = -3.571428571
-1x + x2 = -3.571428571

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = -3.571428571 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -3.571428571 + 0.25

Combine like terms: -3.571428571 + 0.25 = -3.321428571
0.25 + -1x + x2 = -3.321428571

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = -3.321428571

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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