Answer
$z^2+3z+C$
Work Step by Step
$\int (2z+3)dz$
$=\int 2zdz+\int 3dz$
$=2\int z^1dz+3\int z^0 dz$
$=2*\frac{z^2}{2}+3*\frac{z^1}{1}+C$
$=z^2+3z+C$
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