is x + x to the power-2 a polynomial
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No it wouldn't be a polynomial
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- ɴᴏ, x−2 x2 ɪs ɴᴏᴛ ᴀ ᴘᴏʟʏɴᴏᴍɪᴀʟ ғᴜɴᴄᴛɪᴏɴ.
ᴛʜᴇ ᴇxᴘᴏɴᴇɴᴛ ᴏɴ ᴛʜᴇ ᴠᴀʀɪᴀʙʟᴇ ɪɴ ᴀ ᴘᴏʟʏɴᴏᴍɪᴀʟ ғᴜɴᴄᴛɪᴏɴ ᴍᴜsᴛ ʙᴇ ᴀ ᴄᴏɴsᴛᴀɴᴛ ɴᴀᴛᴜʀᴀʟ ɴᴜᴍʙᴇʀ (ɴᴏɴ-ɴᴇɢᴀᴛɪᴠᴇ ɪɴᴛᴇɢᴇʀ). ғᴏʀ ᴇxᴀᴍᴘʟᴇ, x2 ɪs ᴀ ᴘᴏʟʏɴᴏᴍɪᴀʟ ғᴜɴᴄᴛɪᴏɴ.
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜʜ✌
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