find the value of x³+y³+15xy-125 if x+y=5
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It's so simple..
use identity (x+y)3= x3 +y3 +3xy(5)
use identity (x+y)3= x3 +y3 +3xy(5)
yadavutkarsh1234:
i don't want to simplify i want to find the value. if i will put this identity then what will be the use of x+y=5
please tell fast don' waste time okk
sorry don't waste time
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