Answer:
82 is the value of the expression when z = 3
Step-by-step explanation:
Plug in 3 to the expression.
[tex]10z^{2} -2z - 2\\ 10(3)^{2} - 2(3) - 2[/tex]
Then solve the expression.
90 - 6 - 2 = 82
We got 90 when we squared 3 and multiplied that number (9) by 10, resulting in 90.
