if x+y=12 and xy=30find the value of x3+y3
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Answered by
1
Answer:
648
Step-by-step explanation:
x+y whole cube=12^3
=x^3+y^3+3xy(x+y)=1728
=x^3+y^3+3*30(12)=1728
=x^3+y^3+1080=1728
=x^3+y^3=1728-1080=648
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Answered by
1
Step-by-step explanation:
just break the formula of A³+ B³
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