Question

$g(n) = - {2n}^{2} + 3$
Find g(6)

Answer 1

$\bf g(n)=-2n^2+3\qquad \qquad g(\stackrel{\stackrel{n}{\downarrow }}{6})=-2(6)^2+3\implies g(6)=-2(36)+3 \\\\\\ g(6)=-72+3\implies g(6)=-69$