Write an equivalent expression in standard form for (x−4)(2x2−3x+9) .What is the coefficient of the "x" term of the new expression?

A) -11
B) -3
C) 2
D) 21
E) 36

Iam so stuck. what is the worked out answer for this question?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

Brainliest ! which of the coordinates are not of th vertices of the feasible region for the system of inequalities y≤4,,x≤5,x+y> 6 a(2,4) b(0,6) c(5,4) d(5,1)