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

$2350$
Here $a_1=-2$ and $d=2$; an arithmetic sequence $S_n=\dfrac{n}{2}(2a_1+(n-1)d)$ Thus, $S_{50}=\dfrac{50}{2}(2(-2)+(50-1)2)=25(-4+98)$ or, $=2350$