please I'm in need of some serious help.. I have some work due tomorrow how do I solve this problem: 3n(8 - 2N)

& these: -2n(4 + 5n)

-6n(4n - 9)

-3ab(b - 2a)

(a - 3)(a + 3)

(5t - 2)(5t + 2)

(4x + 3)(2x + 9)

I guess you were not paying attention in class:

As an example for:

3n(8 - 2N)

(3)(n)(8)-(3)(n)(2)(n)

The n-n*n will simplify to 1-n

Simplify.