Algebra-1 Problems

5.12 Multiplication and Addition of Polynomials

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A rectangular field has sides: (26 + x) ft and (26 - x) ft respectively. The entire field is covered with grass except for the rectangular cemented region with sides: (8 + x) ft and (8 - x) ft respectively. Sides of the cemented region are aligned with those of the grass field. What is the area of the field covered with grass?



A rectangular prism has length of (x + 9), width of (x - 9) and height of ($\frac{x}{2} - 5$). Write a polynomial to represent the volume of the prism.