Question

Factorize the following expressions using a3-b3 = (a - b)(a2 + ab + b2) identify:
(i) y3 - 27
(ii) 3b3 - 192c3
(iii) -16y3 + 2x3​

Answer 1

Answer:

$y3 - 27 = 3^2 + 3 \times 27 + 27 ^2 \\ 9 + 81 + 729 \\ 819$