lisettetorres01
29.10.2019 •
Mathematics
To translate the train station at the same time one heading east west the westbound train travels at 75 mph the eastbound train travels at 95 mph how long will it take them to transfer be 306 miles apart
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Ответ:
(b-9)^2
Step-by-step explanation:
b^2-18b+81
=b^2-(9+9)b+81
=b^2-9b-9b+81
=b(b-9)-9(b-9)
=(b-9)(b-9)
=(b-9)^2
Hope this helps u!!