Question

choose suitable identity to expand (2p-q)(2p+q)​

Answer 1

Question :-

choose suitable identity to expand (2p-q)(2p+q).

Answer :-

Identity ⤵

$(x + y)(x - y) = {x}^{2} - {y}^{2}$

Expand ⤵

$(2p - q)(2p + q) = {2p}^{2} - {q}^{2} \\ \\ {4p}^{2} - {q}^{2}$

Therefore Answer ➡ 4p² - q²

Step-by-step explanation:

Hope you understand ☆

Answer 2

using the indentity

(a+b)(a-b) = a²-b²

and comparing,

→ (2p-q)(2p+q)

= (2p+q)(2p-q)

= (2p)² - q²

= 4p² - q²