Question

of If x+y=5
find the value of x3+ y3+15xy​

Answer 1

Answer:

125

Step-by-step explanation:

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Answer 2

Answer:

x^3+y^3+15xy=125

Step-by-step explanation:

x+y=5

x^3+y^3+15xy

=(x+y)^3-3xy(x+y)+15xy

=(5)^3-3xy*5+15xy

=125-15xy+15xy

=125