Answer:
-43
Step-by-step explanation:
-2x2 + 2x - 3?
Let x = 5
-2 (5)^2 +2(5) -3
-2 (25) +10 -3
-50 +10 -3
f(5) = - 43
[tex]f(x) = - 2 {x}^{2} + 2x - 3 \\ plugging \: x = 5 \\ f(5) = - 2( {5})^{2} + 2 \times 5 - 3 \\ \hspace{20 pt} = - 2 \times 25 + 10 - 3 \\ \hspace{20 pt}= - 50 + 7 \\ f(5) = - 43[/tex]
