Question

using appropriate identities solve (2-4t)²​

Answer 1

Answer:

(a-b)² = a² - 2ab + b²

=> 2²-[2×2×(-4t)] + (-4t)²

=> 4+16t-16t²

=> 16t²-16t-4

Explanation:

hope will help you

Answer 2

Answer:

[ Identity used: (a-b)² = a² + b² -2ab ]

(2-4t)² = (2)² + (-4t)² - (2 x 2 x (-4t))

= 4 + 16t² +16t = 4 (4t² + 4t + 1)

Explanation: