Math, asked by piyush02106, 10 months ago

By using suitable identity, find the value of:
(-21)^3 + (28)^3

Answers

Answered by TBNRAnirudh

5

Answer:

Step-by-step explanation:

a^3+b^3=(a+b)(a^2+b^2-ab)

=(-21+28)(441+784+588)

=12691

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