A+ Answers
Question 1:
Add (-5+4i) + (1 +2i)
Question 2:
Multiply 2i(5+2i)
Question 3:
Divide
image1.wmf
i
i
+
+
1
2
7
Question 4:
Simplify (-2i)5
Question 5:
Solve the
image2.wmf
0
5
4
2
2
=
-
+
x
x
by completing the square. Then, please leave your answer(s) as EXACT.Question 6:
Solve the
image3.wmf
0
42
13
2
2
=
-
+
x
x
by using the quadratic formula. Then, please leave your answer(s) as EXACT.Question 7:
Solve p4 - 8p2 + 16 = 0
Question 8:
Consider the parabola given by the function f(x) = 3x2 – 6x + 5 , and use f(x) to do each of the following parts.
(a)Find the vertex of f(x).
(b) Use that vertex to find the minimum or maximum of f(x).
(c)Find the interval where f(x) is decreasing.
Question 9:
Solve
image4.wmf
1
1
-
=
-
x
x
Question 10:
Solve
image5.wmf
)
32
(
9
5
-
=
F
C
for F