Answer:
2z^3 - 5z^2 + 4z - 1
Step-by-step explanation:
(2z - 1)(z^2 – 2z+ 1) =
= 2z^3 - 4z^2 + 2z - z^2 + 2z - 1
= 2z^3 - 5z^2 + 4z - 1
5×9×12=540
6×9×12÷2=324
324+540=864
187 ft/s. I think that this might be an equation, but if it is not, I'm sorry.
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