Question

Multiply (x-2y-3z)(2z+x-4y)Horizontal method help pls do it like the attachment given below thnx:)

Answer 1

Step-by-step explanation:

( X- 2 y - 3 z ) ( 2 z + x- 4 y )

= x ( 2 z + x- 4 y ) - 2 y ( 2 z + x - 4 y ) - 3 z ( 2 z + x - 4 y )

= 2z x + x ² - 4 x y - 4 y z - 2 x y + 8 y² - 6 z ² - 3 zx + 12 y z

= x² + 8 y² - 6 z² - 6 x y + 8 y z - zx Ans