Question

Choose the correct one

(a – b)^3


a.
a3-b3-3ab(a-b)

b.
a3 +b3+3ab(a-b)

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Answer 1

Step-by-step explanation:

a ha iska correct ha kyuki when we see that formula (a-b)³= a³-b³-3ab(a-b) so we take