What is the simplified form of the expression 4x^2 - 16 over 2 - x?

Complex Numbers and Their Operations

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Mathematics
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9th - 12th Grade
•
Hard

Amelia Wright
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-4(x + 2)
4(x + 2)
4(x - 2)
-4(x - 2)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When simplifying the expression (x^2 + 4x)/(x + 3) * (x^2 - 9)/(x^2 + x - 12), what is the result?
x + 3
x^2
x
1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the simplest form of the expression (5x^3y + 20x^2y^2 + 20xy^3) / 5xy?
x^2 + 4xy + 4y
x^2 + 4xy + y^2
x^2 + 4x + 4
x^2 + 4xy + 4y^2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which point on the complex plane represents the number 5 - 2i?
Point C
Point D
Point A
Point B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of i^4?
-1
0
1
i
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If i is the square root of -1, what is i^2?
-1
1
0
i
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following complex numbers is represented by the point (3, -4) on the graph?
-3 - 4i
-3 + 4i
3 - 4i
3 + 4i
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