Question

using identities solve the following. (8a-4b)²​

Answer 1

Answer:

64a2-64ab+16b2 is your answer mate

Answer 2

Step-by-step explanation:

(8a-4b)²

identity : (a-b)² = a² + b² - 2ab

(8a)² + (-4b)²- 2×8a×(-4b)

64a² + 16b² - 16a× (-4b)

64a² + 16b² + 64ab