Answer :

Answer:

P=4-q

=> p³+q³+12pq = 64

=> (4-q)³+q³+12(4-q)(q) = 64

=> 64-q³+q³+(48-12q)(12q) = 64

=> 64+576q-144q² = 64

=> -144q²+576q = 64-64

=> 432q = 0

=> q = 0÷432

=> q = 0

=> p = 4-0

=> p = 4

Explanation:

=> p³+q³+12pq = 64

=> (4)³+(0)³+12(4)(0) = 64

=> 64 + 0 + 0 = 64

=> 64 = 64

=> LHS=RHS

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