Question

(x-2y) (3x^2 +4xy-y^2)if value x=-1,y=1andz=2​

Answer 1

Answer:

36

Step-by-step explanation:

$( - 1 - 2)( - 3 \times 2 - 4 - 1 \times 2) \\ ( - 3)( - 6 - 4 - 2) \\ ( - 3)( - 12) \\ 36$