Question

(2a+b)^3-27(a+2b)^3 factorise ​

Answer 1

• ==> (2a + b)^3 - 27 ÷ (a + 2b)^3

• ==> (2ab)^3 - 27 ÷ (2ab)^3

• ==> (2×2×2)(ab) - 27 ÷ (2×2×2)(ab)

• ==> 8ab - 27 ÷ 8ab

• ==> -19ab ÷ 8ab

• ==> −2.375a^2b^2