Answer:
Ok its that one
Jk idk what it is
And since there there is no options or more to the question Thanks for the 5 pts
Yes since 9000 x 1/10 is 900
Place the first term "4x" with descending exponets from left to right beginning with 1 and ending with 1
Place the second term "-2y" with descending exponets from right to left beginning with 1 and ending with 1.
Attached solution and triangle of pascal. The answer is the exponent of x in the term y^4 is 3.