Math, asked by secretsmile, 1 month ago

find the value of x³+y³+15xy-125 If x+y =5

Answers

Answered by mansilodwal

1

Answer:

x+y=5,

x=1 : 1+y=5

y = 5-1

y = 4

x³ + y³ + 15xy + 125 = (1)³ + (4)³ + 15(1)(4) + 12

= 1 + 64 + 60 + 125

= 65 + 180

= 245

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