Question

Q1. Expand
(2a - 3b)3​

Answer 1

Answer:

6a-9b

Step-by-step explanation:

we multiply 3 with the numbers inside the bracket individually . as there are no like terms , we simply write the answer as 6a-9b

Answer 2

Answer:

Solution

(2a-3b)^3

=8a^3-27b^3-3×2a×3b(2a-3b)

=8a^3-27b^3-18ab(2a-3b)

=8a^3-27b^3-36a^2b+54ab^2

=8a^3-36a^2b+54ab^2-27b^3

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