(4x^3+5x^2+9)-(-6x^3+4x^2-9)=

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Solution for (4x^3+5x^2+9)-(-6x^3+4x^2-9)= equation: 


Simplifying
(4x3 + 5x2 + 9) + -1(-6x3 + 4x2 + -9) = 0

Reorder the terms:
(9 + 5x2 + 4x3) + -1(-6x3 + 4x2 + -9) = 0

Remove parenthesis around (9 + 5x2 + 4x3)
9 + 5x2 + 4x3 + -1(-6x3 + 4x2 + -9) = 0

Reorder the terms:
9 + 5x2 + 4x3 + -1(-9 + 4x2 + -6x3) = 0
9 + 5x2 + 4x3 + (-9 * -1 + 4x2 * -1 + -6x3 * -1) = 0
9 + 5x2 + 4x3 + (9 + -4x2 + 6x3) = 0

Reorder the terms:
9 + 9 + 5x2 + -4x2 + 4x3 + 6x3 = 0

Combine like terms: 9 + 9 = 18
18 + 5x2 + -4x2 + 4x3 + 6x3 = 0

Combine like terms: 5x2 + -4x2 = 1x2
18 + 1x2 + 4x3 + 6x3 = 0

Combine like terms: 4x3 + 6x3 = 10x3
18 + 1x2 + 10x3 = 0

Solving
18 + 1x2 + 10x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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