Question

Q (x) =  -x^2 + x - 2023 

Tính Q (2)

Answer 1

\(Q\left(2\right)=-\left(2\right)^2+2-2023\\ =-2025\)

Answer 2

Thay `2` vào `x`, ta có:

\(Q\left(2\right)=-2^2+2-2023\)

\(Q\left(2\right)=-4+2-2023\)

\(Q\left(2\right)=-2-2023\)

\(Q\left(2\right)=-\left(2+2023\right)\)

\(Q\left(2\right)=-2025.\)

Answer 3

\(Q\left(2\right)=-2^2+2-2023=-4+2-2023=-2-2023=-2025\)