Answer:
5670 x^4 y^4
Step-by-step explanation:
Using Pascal's triangle, we know that the 5th term will have:
70x^4 y^4.
Now we simply need to determine the coefficient for this. Plug in 1 for x as x in (x-3y)^8 has a coefficient of one, and plug in -3 for y for the same reason. The result is:
70(1^4)(-3^4) = 81 * 70 = 5670.
As a result, the 5th term is 5670(x^4)(y^4).
