If x+y=10and xy=25find the value of xcube +ycube
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We know the formula of xcube + ycube =(x+y)cube +3xy(x+y)
So applying this formula we get,
Xcube + Ycube =(10)cube + 3×25(10)
Since given x+y=10 ànd x×y=25 on solving we get
1000+75×10=1000+750=1750 hope this is right
So applying this formula we get,
Xcube + Ycube =(10)cube + 3×25(10)
Since given x+y=10 ànd x×y=25 on solving we get
1000+75×10=1000+750=1750 hope this is right
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