solve a cube + b cube when a+b=6 and ab =7
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Answers
Answered by
1
Answer:
a+b=6
ab=7
a^3+b^3
=(a+b)^3-3ab(a+b)
=(6)^3-3.7.6
=216-126
=90
Answered by
1
Answer:
A cube + B cube = 90
Step-by-step explanation:
use the formula (a+b)cube= a cube + b cube + 3ab( a+b)
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