Question

(4x-9y)^3 simply by expantion​

Answer 1

Answer:

Hi mate

Step-by-step explanation:

$\implies$ $(4x - 9y)^{3}$

$\red\bigstar$ $(a - b)^3 = a^3 - b^3 - 3ab(a - b)$

$\implies$ $(4x - 9y)^3 = 64x^3 - 273y^3 - 108xy(4x - 9y)\\ (4x - 9y)^3 = 64x^3 - 273y^3 - 432x^2y + 972xy^2$