(8x3 - 6x4 + 3) + (3x3 - 3 + 8x4)

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your