Question

if x+y=twelve and xy=27 find value of x³+y³​

Answer 1

Step-by-step explanation:

(x+y)^3=x^3+y^3+3xy(x+y)

=(12)^3=x^3+y^3+3×27×12

=1728=x^3+y^3+972

=1728-972=x^3+y^3

=756=x^3+y^3

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