Advanced Functions Unit Test Version A

Question

Find the difference:

            

Fill in the numeric values below.  Don't forget to include the negative signs if needed.

       +           +         +  .

Answer 1

(-3x^3 + 4x^2 + 9x - 7) - (2x^2 - 4x - 3)

-3x^3 + 4x^2 + 9x - 7 - 2x^2 + 4x + 3 ------- Distributed negative sign into 2nd parenthesis

-3x^3 +2x^2 + 13x - 4 ------- Combine like terms with the same variable and exponent to get the final answer

-3x^3 +2x^2 + 13x - 4 ------- Numeric value are underlined