Question

Using suitable identity expand
(3x+4y)³​

Answer 1

3x³+6x²4y+8x4y²+4y³

........

Answer 2

(3x+4y)^3

3x^3+4y^3+3×3x^2×4y+3×3x×4y^2

27x^3+64y^3+12y×9x^2+9x×16y^2

27x^3+64y^3+ 108x^2y+144xy^2

please follow me