if x+y=8 and xy=15 then find the value of x^3+y^3
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x=3 and y= 5 so value of x^3 + y^3 = (3)^3 +(5)^3 = 27+125 =152
HarathiKallem:
thank you so much
But what if x was equals to 5 and y was equals to 3
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Given x+y=8, xy=15
x^3+y^3
=(x+y)^3-3xy(x+y)
=8^3-3×15×8
=512-360
=152
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