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2.5, 2.7, 2.9

Authored by David Marzano

Mathematics

10th - 12th Grade

CCSS covered

Used 19+ times

2.5, 2.7, 2.9
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

√-36

6
-6
-6i
6i

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

(5-2i) + (-7+8i)

-2+6i
12+6i
-35-16i2
-35 -16i

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

(10+3i) - (2-9i)

20-27i
12-7i
8+12i
20-27i2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify.
(5-i)(5+i)

26
24
25+i2
25-i2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify
(3 + i)(1 - 4i)

7 - 11i
3 - 4i
3 - 11i - 4i2
2 - 3i

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Solve
x2 + 49 = 0

-7
-7
7i
±7i

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The expression (2 + 3i)2 is equal to

-5
-5 + 12i
13
13 + 12i

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