a) Simplify the expression and explain each step.

4(3x+2)−2

b) Factor the expression completely.
20b−16

a) Simplify the expression and explain each step.

4(3x+2)−2
4*3*x + 4*2 - 2
12 x + 8 - 2
12x + 6

b) Factor the expression completely.
20b−16
4 ( 5 b - 4)
2*2*5*b - 2*2*2*2