Question

(a+b)³-a³-b³ smplify​

Answer 1

Answer:

a×3+b×3+3ab(a+b) -a×a×a-b×b×b

=3ab(a+b)

=3a×2.b×2

Answer 2

Answer:

simplifying

first we has to know

(a+b)^3

=a^3+b^3+3a^2b+3ab^2

Step-by-step explanation:

(a+b)^3-a^3-b^3

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

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

=3a^2b +3ab^2

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