MATH
1.(3
lOO
FALL
2OO8
2.(3 pts) Frctor completely.
pts) Factor completely.
{y-9y-2x+18
250x3 -128
TEST 4
3.(3 pts) Find the LCD for the following
denominators.
5x+35,
*
-qg,
x
4. OPTIONAL PROBLEM FOR EXTRA CREDIT (5 pts)
Find the distance betureen the points
(5,6) and (7,12). Shw your nork. Simplify your ansner. Do not use a decimal.
5.(6pb) Findtheequationof thelinethatcontains (3,5) andthatisperpendiculartotheline 3x+10y=1. Expreesyour
answer in general form (Ar + 8y = C; no
.....'...:=............:----
x+10 x-10 xz-100
frrc{onr or decimrlr; A b pool$ne).
Show your work.
pts) simptify
7 (5
[rr-
t)
J ,u
I
'
Do not use decimats or
pts) Simplify
9 (3
the
{ffi.
10.(4 pts) simptify
answer. Show your work.
5)2
lxeJ
Do not use decimals in your
answer. Show your work.
radicals in your answer. Show your work.
(
125)
\ *l
pts) Evaluate f -
8 (5
Do not use decimals in the
not use decimals or radicals in
+.Do
(")t
answer. Show your work.
11.(3
pts) Simplify. Do not use decimals. Show your work.
I'F
"
3l
Vgz
pts) Simplify. Do not
12.(5
use decimals. Show your work.
13.(5
pts) Multiply and simplify. Do not use decimals. Show
your work.
200x1
1
ye
(6*z)(,G-z)
pts) Rationalize the clenominator. Reduce your answer. Do not use decimals. Show your work.
14.(5
15
J13
-
fio
15.(5 pts) Write the quotient in standard a + bi
your work.
4+i
Z*gt
form. (Get i out of the denominator and put the result in standard form.) Show
16.(3 pts)
Add. Do not use decimals.
18.(4 pts) Multiply. Do not use decimals. Simpfity the
answer. Show your work.
x. Show your
work, and show your
checking.
19
19.(4
pts) State the quadratic formula that is used to solve
for x in the equation ax? *bx
,t-
20.(6 pts) Solve for
.rtr.
pts) Add. Do not use decimals. Show your work.
e?G +3W
12J-10 *./T6.
J.-'14
17.(4
-7
+
c = 0.
21.(6 pts) Solve for x by using the quadratic formula.
Express your answer as a single ftaction in lowest terms.
Show your work.
=x
3x2
Candidates_
Genuine
Solution(s)-
22.(6 pts) Sofve for x by using the square root property.
(ISOLATE x. Do NOT use the quadratic formula.) Express
your answer as a single fraction in lowest terms. Show your
work.
(8x- 6)2 =2q
-8x=2
23.(6 pts) Solve for x by using the quadratic formula.
Express your answer in standard a + bi form.
3x2
-6x+4=0