Answer :
I'm assuming that the number after the variable is supposed to be the exponent.
[tex] 5x^{5}+8 x^{2} +2x-3x^{9}-8x^{4}-4x^{5}[/tex]
Combine like terms to get:
[tex]-3x^{9}+x^{5}-8x^{4}+8x^{2}+2x[/tex]
[tex] 5x^{5}+8 x^{2} +2x-3x^{9}-8x^{4}-4x^{5}[/tex]
Combine like terms to get:
[tex]-3x^{9}+x^{5}-8x^{4}+8x^{2}+2x[/tex]