SOLUTION: I need to factor completely this equation: 1000P^3 - 27J^3 It doesn't appear that this can factor
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Question 184069
:
I need to factor completely this equation:
1000P^3 - 27J^3
It doesn't appear that this can factor
Answer by
HyperBrain(694)
(
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):
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Quicknote:
a
3
-b
3
=(a-b)(a
2
+ab+b
2
)
Observation: 1000P
3
=(10P)
3
and 27J
3
=(3J)
3
So
let a=10P
b=3J
1000P
3
-27J
3
=(10P-3J)(100P
2
+30PJ+9J
2
)
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