I advise not to hide your feelings,dont pretend to be okay when your not okay,dont pretend to be happy when your sad,it'll only lead to your misery

thanks for the advice

Step-by-step explanation:

Um I have nothing to say but Hi

Step-by-step explanation:

You can only add x terms together only if they have the same exponent. For example you can add 2x^2 and x^2 but you cannot add x^2 and x^3.

In this particular problem, you can add 4x^4 and x^4, and x and 8x. So,

(x + 4x^4) + (x^4 - 2 + 8x)
= 5x^4 + 9x -2