Question

mind my writhing 25 points plz right answer plz​

Answer 1

Answer:-
370
Step-by-step explanation:
Given : a+b = 10
ab = 21
To Find: a^3+b^3
Solution:
Identity : (a+b)^3=a^3+b^3+3ab(a+b)
Substitute the given values
(10)^3=a^3+b^3+3(21)(10)
1000=a^3+b^3+630
1000-630=a^3+b^3
370=a^3+b^3
Hence the value of a^3+b^3 is 370.
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