Question

If p+q = 1 + pq then p³+q³ is equal to​

Answer 1

Answer:

p+q = 1

By cubing both sides,

(p+q)³ = 1³

p³+q³+pq(p+q) =1

p³+q³+pq = 1

p³+ q³= 1-pq

Answer 2

Answer:

p^3+q^3=1+(pq)^3-3a^b+3ab^2

Step-by-step explanation:

P+Q=1+PQ

=>C.O.B.S

=>(P+Q)^3=P^3+Q^3+3a^2b+3ab^2=1+(pq)^3

=>p^3+q^3=1+(pq)^3-3a^b+3ab^2

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