Simplify completely 12 X 7 O 12 X 7 x 7 x 3 O X 3 X 7 X 7 x

Last updated: 12/3/2023

Simplify completely 12 X 7 O 12 X 7 x 7 x 3 O X 3 X 7 X 7 x 3 12x 36 x 4x 21 X 7 and find the restrictions on the variable