Tolong di sederhanakan yaa!

1. 6p+2 (7p-2)
=6p+14p-4
=20p-4

2. 5 (x-2y) -3 (2x-y)
=5x-10y-6x+3y
=-x-7y

3. -3 (x-4y) +4 (5x–3y)
=-3x+12y+20x-12y
=17x

4. (5x +7) -3 (2x-5)
=5x+7-6x+15
=-x+22