Answer:
Step-by-step explanation:
All use distributive propriety of multiplication over addition/subtraction
just remember (-)*(-) = (+) and (-)*(+) = (-)
1) -6(a+8) = -6a -48
2) 4(1+9x) = 4 + 36x
3) 6(-5n+7) = -30n + 42
4) (9m +10) *2 = 18m +20
5) (-4-3n)*-8 = 32+24n
6) 8(-b-4) = -8b -32
