Question

x + y = 4 , find x³ + y³ - 64
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Answer me fast​

Answer 1

Answer:

-12xy

Step-by-step explanation:

x+y=4------{1}

cubing on both side

(x+y)^3=4^3

x^3+y^3+3xy(x+y)=64

x^3+y^3+12xy=64----------{from (1)}

x^3+y^3-64=-12xy