Question

Expand (x+2y-4)(x-2y-4)​

Answer 1

Answer:

here put the formula of (a)2-(b)2

Step-by-step explanation:

thank u......

Answer 2

( x + 2y - 4 ) ( x -2y - 4 )

x ( x - 2y - 4 ) + 2y ( x - 2y - 4) - 4 ( x - 2y - 1 )

x^2 - 2xy - 4x + 2xy - 4y^2 - 8y - 4x - 8y + 4

x^2 - 8x - 4y^2 + 8y + y answer