Factories the following....
I will mark brainlist...
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c.x^4-1
=X^4=1
=x=1
(p+q)^2-81
p+q=9
ᴍᴀʀᴋ ᴍᴇ ᴀꜱ ʙʀᴀɪɴʟɪᴇꜱᴛ:-: