1.
[tex]4x(3y(-2x2y)) \\ 4x(-2x6y) \\ -8x[/tex] × [tex]6y[/tex]
2. ((-4) × 2 × 2) - 1 = -17
3. 3(n×3) × 5(n×4)
= 3n × 9 × 5n × 20
= 15n × 180
= 2700n
Double-check what I did, as you were missing brackets and some operations, and I had to guess based on what you have
