8 Cumulative Test Prep

Vocabulary Builder

As you solve test items, you must understand the meanings of mathematical terms. Match each term with its mathematical meaning.

Multiple Choice

Read each question. Then write the letter of the correct answer on your paper.

1. Which expression equals 5 x x 2 − 9 − 4 x x 2 + 5 x + 6 ? fraction 5 x , over x squared , minus 9 end fraction . minus . fraction 4 x , over x squared , plus 5 x plus 6 end fraction . question mark
   1. 7 x ( x − 3 ) ( x + 3 ) ( x + 2 ) fraction 7 x , over open , x minus 3 , close . open , x plus 3 , close . open , x plus 2 , close end fraction
   2. x 2 − 2 x ( x − 3 ) ( x + 3 ) ( x + 2 ) fraction x squared , minus 2 x , over open , x minus 3 , close . open , x plus 3 , close . open , x plus 2 , close end fraction
   3. x 2 + 22 x ( x − 3 ) ( x + 3 ) ( x + 2 ) fraction x squared , plus 22 x , over open , x minus 3 , close . open , x plus 3 , close . open , x plus 2 , close end fraction
   4. 9 x 2 − 2 x ( x − 3 ) ( x + 3 ) ( x + 2 ) fraction 9 , x squared , minus 2 x , over open , x minus 3 , close . open , x plus 3 , close . open , x plus 2 , close end fraction
2. If x is a real number, for what values of x is the equation 2 x − 8 4 x − 1 = x 2 − 4 x 2 fraction 2 x minus 8 , over 4 , x super negative 1 end super end fraction . equals . fraction x squared , minus 4 x , over 2 end fraction  true?
   6. all values of x
   7. some values of x
   8. no values of x
   9. impossible to determine

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