Write in Standard Form f(x)=2x+x^3+3x^5+4

$f (x) = 2 x + x^{3} + 3 x^{5} + 4$

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

$f (x) = a x^{2} + b x + c$

Move $2 x$ .

$f (x) = x^{3} + 3 x^{5} + 2 x + 4$

Reorder $x^{3}$ and $3 x^{5}$ .

$f (x) = 3 x^{5} + x^{3} + 2 x + 4$