SOLUTION:

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Question 50590:
Answer by Mikemighty(1) About Me  (Show Source):
You can put this solution on YOUR website!
please solve for W
(8 + w) * w = 308
Solution:
==> w^2+8w=308 (on multiplying the left hand side)
=> w^2+8w-308=0 (subtracting 308 from both the sides)
This becomes a quardratic equation now. Solution can be given as
w=+%28-8%2B-sqrt%288%5E2-4%2A1%2A-308%29%29%2F%282%2A1%29 ( using the formula x=%28-b%2B-sqrt%28b%5E2-4%2Aa%2Ac%29%29%2F%282%2Aa%29
==> w=14 or -22.