Question

Wt is identity for a cube minus b cube

Answer 1

Answer:

 (a3 – b3) = (a – b)(a2 + b2 + ab)

Let us consider a = 4 and b= 2 then

(43 – 23) = (4 – 2)(42 + 22 + 4✕2)

(43 – 23) = 56 

(a – b)(a2 + b2 + ab) = 56

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