Question

simplify the following ( using identity)
(2x - 4y + 7) (2x+4y+7)​

Answer 1

Step-by-step explanation:

using (a+b)(a-b)=a×a-b×b

Answer 2

Answer:

$(2x - 4y + 7)(2x + 4y + 7) \\ 2x {}^{2} -( 4y + 7) {}^{2}$

Step-by-step explanation:

by the formula is

$a {}^{2} - b {}^{2}$