## Intermediate Algebra for College Students (7th Edition)

$480x^2$
Need to find the fourth term. Apply Binomial Theorem. $(a+b)^n=\sum_{r=0}^n\dbinom{n}{r}(a)^{n-r}b^r$ $(x+2)^5=\dbinom{5}{3}(x)^2(2)^3$ or, $=60(x^2)(8)$ or, $=480x^2$