1.   Simplify 2x2 + 5x2 + 7x.
    A. 2x2 + 12x B. 14x2
    C. 14x D. 7x2 + 7x
    Hint

  2.   Simplify the polynomial 4a2 + a2.
    A. 6a2 B. 4a2
    C. 4a2 + a D. 5a2
    Hint

  3.   Simplify the polynomial 7x - 2y.
    A. 5x B. 5y
    C. 7x - 2y D. 5xy
    Hint

  4.   Simplify the expression 2a + 7b + 12a + 3b and then evaluate if a = 2 and b = -2.
    A. 10a + 14b; -8 B. 14a + 8b; 12
    C. 9a + 15b; -12 D. 14a + 10b; 8
    Hint

  5.   Write the expression in factored form.3x2 – 6x
    A. 3x (x + 2) B. 3x (x – 6)
    C. x (x – 6) D. 3x (x – 2)
    Hint



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