1.

Expand : `(i) (2x+3y)^(3) " " (ii) (5y-3x)^(3) " " (iii) (2a+3b)^(3)`.

Answer» Correct Answer - `(i) 8x^(3)+27y^(3)+36x^(2)y+54xy^(2) " " (ii) 125y^(3)-225y^(2)x+135yx^(2)-27x^(3) " " (iii) 8a^(3)+27b^(@)b+54ab^(2)`


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