(7+4x+9x^2+8x^3)-(-4+4x-9x^2+8x^3)=

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Solution for (7+4x+9x^2+8x^3)-(-4+4x-9x^2+8x^3)= equation:


Simplifying
(7 + 4x + 9x2 + 8x3) + -1(-4 + 4x + -9x2 + 8x3) = 0

Remove parenthesis around (7 + 4x + 9x2 + 8x3)
7 + 4x + 9x2 + 8x3 + -1(-4 + 4x + -9x2 + 8x3) = 0
7 + 4x + 9x2 + 8x3 + (-4 * -1 + 4x * -1 + -9x2 * -1 + 8x3 * -1) = 0
7 + 4x + 9x2 + 8x3 + (4 + -4x + 9x2 + -8x3) = 0

Reorder the terms:
7 + 4 + 4x + -4x + 9x2 + 9x2 + 8x3 + -8x3 = 0

Combine like terms: 7 + 4 = 11
11 + 4x + -4x + 9x2 + 9x2 + 8x3 + -8x3 = 0

Combine like terms: 4x + -4x = 0
11 + 0 + 9x2 + 9x2 + 8x3 + -8x3 = 0
11 + 9x2 + 9x2 + 8x3 + -8x3 = 0

Combine like terms: 9x2 + 9x2 = 18x2
11 + 18x2 + 8x3 + -8x3 = 0

Combine like terms: 8x3 + -8x3 = 0
11 + 18x2 + 0 = 0
11 + 18x2 = 0

Solving
11 + 18x2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-11' to each side of the equation.
11 + -11 + 18x2 = 0 + -11

Combine like terms: 11 + -11 = 0
0 + 18x2 = 0 + -11
18x2 = 0 + -11

Combine like terms: 0 + -11 = -11
18x2 = -11

Divide each side by '18'.
x2 = -0.6111111111

Simplifying
x2 = -0.6111111111

Reorder the terms:
0.6111111111 + x2 = -0.6111111111 + 0.6111111111

Combine like terms: -0.6111111111 + 0.6111111111 = 0.0000000000
0.6111111111 + x2 = 0.0000000000

The solution to this equation could not be determined.

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