Question

expand (4a-2b-3c)² ​

Answer 1

Answer:

ans is 16a^2 + 4b^2 + 9c^2 - 16ab + 12bc -24 ac

Answer 2

❄️ Solution:-

Using identity V, we have

(4a – 2b – 3c)² = [4a + (-2b) + (-3c)]²

= (4a)² + (-2b)² + (-3c)² + 2(4a)(-2b) + 2(-2b)(-3c) + 2(-3c)(4a)

= 16b² + 4b² + 9c² – 16ab + 12bc – 24ac