37. 27x^3-12x^2
40. 5x^4y^6+30x^5y^4
49. 10x-1x-2
The Fertile Crescent is referred to as the area between the Euphrates River and the Tigris River, as well as the Nile River.
The Fertile Crescent is located in North-Eastern Egypt, through Israel, to the negev of Turkey, and stretches in a slanted area to the border of the Persian Gulf.
hope this helps
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