Question

Find the value of x^3+y^3+15xy-125 if x+ y = 5.

Answer 1

HELLO DEAR,
given that:-


(x+y)=5

we know that:-

(a+b)³=a³+b³+3ab(a+b)


now comparing the Equation
we get,


125 = x³ + y³+ 3xy(x + y)

125 = x³ + y³+ 3xy(5)

125 = x3 + y3+ 15xy

x3 + y3+ 15xy - 125 = 0

I HOPE ITS HELP YOU DEAR,
THANKS

Answer 2

Answer:

0 is the answer of this question.

Hope it helps.

Please mark it as brainliest.