Question

Evaluate each polynomial for x = 3 and for x = −3.


4x2 − 6x + 9

Answer 1

wait.. which one 3 or -3 ??

Answer 2

replace x by 3 and see what you get
i.e. compute
\[4\times 3^2-6\times 3+9\] for the first one and
\[4\times (-3)^2-6\times (-3)+9\] for the second