Question

ii)Write down the expansion (3x-2y)³.​

Answer 1

Step-by-step explanation:

(3x-2y)³

= (3x)^3 - (2y)^3 + 3(3x)^2(2y) - 3(3x)(2y)^2

= 27x^3 - 8y^3 + 54x^2^y - 36xy^2