2.66 is the speed
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Answer:
12
Step-by-step explanation:
Let's simplify each term.



Now we multiply:

Hope this helps!
Consider, pls, this solution:
according to the equation y= -3x²+6x+2, where a=-3, b=6 and c=2, and the rule x₀= -b/(2a):
<u>x₀=</u>-6/(-6)<u>=1</u>.
For more info see the attached graph.