You have to multiply -2 to all of the numbers inside the parenthesis and you will have your answer. -6v+4x+2
We know P = 1/2
X~B(2, 0.5)
n = 1
2C1 from pascal triangle = 2
P(X=0.5)= 2C1 x 0.5 x 0.5
= 0.5
= 50%
10 1/18...........................................
...................................................
