Question

x+y=5 xy=4 Find x^3+y^3

Answer 1

Answer:

The answer yo your question is 65

Step-by-step explanation:

Given:- xy = 4 –––(1)

x+y = 5 –––(2)

(x+y)³=5³

x³+y³+3xy(x+y) = 125

x³+y³ +3(4)(5) =125 [From equation (1) and (2)]

x³+y³+60=125

x³+y³=125-60

x³+y³ = 65

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Answer 2

Answer:

65

Step-by-step explanation:

x+y = 5

(x+y)^3 =125

x^3 + y^3 + 3xy(x+y) =125

x^3 + y^3 + 3(4)(5) = 125

x^3 + y^3 = 125 - 60 = 65