Self Test
prepared by:
Joseph Malkevitch
Mathematics Department
York College (CUNY)
Jamaica, NY 11451
email:
malkevitch@york.cuny.edu
web page:
http://york.cuny.edu/~malk/
The questions below are designed as a self-test to determine if you are making mistakes with regards to some of the basic skills that are the background for precalculus.
1. Perform the indicated operations and simplify:
a. (3/14) + (7/15) =
b. (7/12)(5/21) =
c. (14/15) divided by (21/35) =
2. Multiply or simplify:
a. (x - 8)(x + 4) =
b. (x - 5)(x - 9) =
c. (x - 9y)2 =
d. (x7)(x4) =
3. Perform the indicated operations and/or simplify:
a. (3x/5) - (4x/3) =
b. (3x/7)(14x/9) =
c. 2x/5 divided by 15/x4
d.
e.
f. (-3x3 + 4x2 -9x +5) - (-7x + 3x3 + 2x2 - 11) =