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Alex777 [14]
3 years ago
9

When factored completely the expression p^4-81 is equivalent to

Mathematics
1 answer:
spayn [35]3 years ago
7 0
   
\displaystyle\\
p^4 - 81 =\\\\
 =p^4-3^4 =\\\\
= \Big(p^2\Big)^2 - \Big(3^2\Big)^2 =\\\\
=\Big(p^2+3^2\Big)\Big(p^2-3^2\Big)=\\\\
=\boxed{\bf \Big(p^2+3^2\Big)\Big(p+3\Big)\Big(p-3\Big)}



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