a+b=12 and ab=27 then what is a^3+b^3
Answers
Answered by
0
Answer:
756
Step-by-step explanation:
a³ + b³ = (a + b)³ - 3ab(a+b)
= 12³ - 3 * 27 * 12
= 756
Answered by
0
Answer:
(a+b)³=a³+b³+3ab(a+b)
a³+b³=(a+b)³-3ab(a+b)
=(12)³-3×27(12)
=1728-972
a³+b³=756
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