Question

Find the intervals in which the following function
f(x)=2x^3 - 9x²-12x+1 is strictly increasing or strictly decreasing​

Answer 1

Answer:

[–2, –1]

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Answer 2

yᴏᴜʀ ᴀɴꜱᴡᴇʀ ɪꜱ ʀᴇʟᴀᴛᴇᴅ ᴛᴏ ᴀʙᴏᴠᴇ ᴀᴛᴛᴄʜᴀᴍᴇɴᴛ