Step-by-step explanation:
Substitute d=-2 into the equation:
[tex]n = 2( - 2)^{2} - 5[/tex]
Include the exponent:
[tex]n = 2(4) - 5[/tex]
Multiply:
[tex]n = 8 - 5[/tex]
Subtract:
[tex]n = 3[/tex]
