Question

(2a – 3b)*3 Expand this

Answer 1

$\huge\bold\green{\underline{\underline{Given:}}}$

$\bold{(2a\:-\:3b)^3}$

$\huge\bold\pink{\underline{\underline{Solution:}}}$

$\bold{(a\:-\:b)^3\:=\:a^3\:-\:b^3\:-\:3a^2b\:+\:3ab^2}$

$\bold{(2a\:-\:3b)^3\:=\:(2a)^3\:-\:(3b)^3\:-\:3(2a)^2(3b)\:+\:3(2a)(3b)^2}$

$\bold{\boxed{\boxed{(2a\:-\:3b)^3\:=\:8a^3\:-\:27b^3\:-\:36(a^2)(b)\:+\:26(a)(b^2)}}}$