Answer:
6x^2 - 3x
Step-by-step explanation:
3x (2x-1)
multiply 3x by 2x -> 6x^2
multiply 3x by -1 -> -3x
Answer: 3/8ths
Step-by-step explanation: 1/8+1/8+1/8=3/8
k - 9 = 3
And k = 12