Applications of polynomials

Lessons

1. Find the area of the shaded region.
   
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2. Find the area of the following geometric figures
   
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3. The area of a rectangle is $(a^3+2a^2+3a+6)$cm$^2$
   
   1. Determine the height of the rectangle.
      
   2. Solve for $x$ and the dimension of the right triangle