(8x + 6x^3 + 1)+(8x^3 - 5x)

Answer:

$14x^{3}+3x + 1$

Explanation:

Step1: Remove parentheses

$(8x + 6x^{3}+1)+(8x^{3}-5x)=8x + 6x^{3}+1+8x^{3}-5x$

Step2: Combine like - terms of $x^{3}$

$6x^{3}+8x^{3}=14x^{3}$

Step3: Combine like - terms of $x$

$8x-5x = 3x$

Step4: Write the final result

$14x^{3}+3x + 1$