Question

expand (a-4b)^2 answers​

Answer 1

Answer:

Hey mate

(a-4b)²= (a)² - 2×a×4b + (4b)²

= a² - 8ab + 16b²

(by using identity)

(a-b)² = a² - 2ab +b²

hope it will help you

Answer 2

Answer:

a^2+16b^2-8ab

Step-by-step explanation:

Expand using (a-b)^2 formula

(a-4b)^2 = a^2 +16b^2 - 2(a)(4b)

(a-4b)^2=a^2 +16b^2-8ab