Answer:
I can't solve and show it but only tell a method to do it!
So find the zero of the given factor:
i.e.

Now put its value (-1) in the polynomial

Now if the answer comes zero it is a factor.
You'll get your answer!
Answer:
w=20
Step-by-step explanation:
Solve for w by cross multiplying.
Answer: 288.74
Step-by-step explanation: