\(\displaystyle \dfrac{1}{1000}(1000w^2+ 140w - 48) = \)
\(\displaystyle \dfrac{1}{250}(250w^2+ 35w - 7) \ \ \ \ \ \ \) Incorrect.
Now try to factor (250w2+ 35w - 7). \(\displaystyle \ \ \ \ \ \ \)This is still incorrect.
The constant term becomes -12, not -7. Note the two posts above yours with the -12.