1.   Find (4x2 + 3x) + (7x2 – 5x – 6).
    A. 11x2 – 8x – 6 B. 11x2 – 2x – 6
    C. 9x – 6 D. 11x4 – 2x2 – 6
    Hint

  2.   Find the sum (4xy2 – 3x2y – 5xy – 6) + (-5xy2 – 2xy + 3).
    A. -xy2 – 3x2y – 7xy – 3 B. 4xy2 – 8x2y – 7xy – 3
    C. 4xy2 – 7xy – 3 D. -xy2 – 3x2y – 3xy – 3
    Hint

  3.   Find the polynomial that represents the measure of the perimeter of the triangle.
   
    A. 5xy2 + 10x B. 7xy2 + 10x – 2y
    C. 15xy2 D. 7x3y6 + 10x2 – 2y
    Hint

  4.   Anthony and Sanford each throw a football. The height of Anthony's throw can represented by the equation A = –10x2 + 15x + 22, where A is height and x is the time in seconds. The height of Sanford's throw can represented by the equation S = –9x2 + 14x + 23. At time x, how much higher is Sanford's throw?
    A. x2 + x + 1 B. x2 + x – 1
    C. x2x + 1 D. x2x – 1
    Hint

  5.   Anthony and Sanford each throw a football. The height of Anthony's throw can represented by the equation A = –10x2 + 15x + 22, where A is height and x is the time in seconds. The height of Sanford's throw can represented by the equation S = –9x2 + 14x + 23. At time x, what is the combined height of the throws?
    A. –19x2 + 29x + 45 B. x2x + 1
    C. 19x2 + 29x + 45 D. x2 + x – 1
    Hint



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