Answer
(x+1)(x$^2$+5)
Work Step by Step
Factor out the GCF from the first two terms and the last two terms, then complete the factoring process by grouping the coefficients of the parentheses.
x$^3$+5x+x$^2$+5
x(x$^2$+5)+1(x$^2$+5)
(x+1)(x$^2$+5)