7x^3 - 6 + 5x^2 + 6x^4 - 2 - 6x^3 + (4x^2 + 3x^4 + 8x)
7x^3 - 6 + 5x^2 + 6x^4 - 2 - 6x^3 + 4x^2 + 81 +8x
x^3 - 6 + 5x^2 + 6x^4 - 2 - 6x^3 + 4x^2 + 81 +8x
X^3 +73 + 5x^2 + 6x^4 + 4x^2 +8x
X^3 +73 + 9x^2 + 6x^4 +8x
the correct answer is
6x^4 + x^3 + 9x^2 +8x +73
