Solve this :

a   -   b 3   =   ?  

Dear student
Consider,a-b3=a-b2a-b=a2+b2-2aba-b    using x+y2=x2+y2+2xy=a3-a2b+ab2-b3-2a2b+2ab2=a3-b3-3a2b+3ab2=a3-b3-3aba-b
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Please find this answer

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Please find this answer

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It's an identity.

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