Answer:
3x + 12
Step-by-step explanation:
Use the distributive property.
3(x + 4) = 3 * x + 3 * 4 = 3x + 12
Answer: 3x + 12
3x+12
I know the answer of first only
'c'
(x-2) ^3
x^3-6x^3+12x-8
X = 90°