Precalculus Examples

$\sum_{i = 1}^{5} 5 i + 3$

Step 1

Expand the series for each value of $i$ .

$5 \cdot 1 + 3 + 5 \cdot 2 + 3 + 5 \cdot 3 + 3 + \dots + 5 \cdot 5 + 3$

Step 2

Simplify the expanded form.

$90$