(-11x^3+15x^2-9x+12)+(5x^3+13x^2-4x-20)=

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Solution for (-11x^3+15x^2-9x+12)+(5x^3+13x^2-4x-20)= equation:


Simplifying
(-11x3 + 15x2 + -9x + 12) + (5x3 + 13x2 + -4x + -20) = 0

Reorder the terms:
(12 + -9x + 15x2 + -11x3) + (5x3 + 13x2 + -4x + -20) = 0

Remove parenthesis around (12 + -9x + 15x2 + -11x3)
12 + -9x + 15x2 + -11x3 + (5x3 + 13x2 + -4x + -20) = 0

Reorder the terms:
12 + -9x + 15x2 + -11x3 + (-20 + -4x + 13x2 + 5x3) = 0

Remove parenthesis around (-20 + -4x + 13x2 + 5x3)
12 + -9x + 15x2 + -11x3 + -20 + -4x + 13x2 + 5x3 = 0

Reorder the terms:
12 + -20 + -9x + -4x + 15x2 + 13x2 + -11x3 + 5x3 = 0

Combine like terms: 12 + -20 = -8
-8 + -9x + -4x + 15x2 + 13x2 + -11x3 + 5x3 = 0

Combine like terms: -9x + -4x = -13x
-8 + -13x + 15x2 + 13x2 + -11x3 + 5x3 = 0

Combine like terms: 15x2 + 13x2 = 28x2
-8 + -13x + 28x2 + -11x3 + 5x3 = 0

Combine like terms: -11x3 + 5x3 = -6x3
-8 + -13x + 28x2 + -6x3 = 0

Solving
-8 + -13x + 28x2 + -6x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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