Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Simplify the complex expression: (2 + 4i) + (-6 –
4i).
a. | -4i | c. | - 28 – 32i | b. | -4 | d. | - 4 +
8i |
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2.
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Simplify the complex expression: 3i + 4 – 3i +
2i – 6.
a. | - 2 | c. | - 2 + 2i | b. | - 2i | d. | 2 –
2i |
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3.
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Simplify the complex expresion: 3i(5 –
2i).
a. | 15 – 6i | c. | 15 + 2i | b. | 6 +
15i | d. | 21i |
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4.
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Simplify the complex expresion: (2 + 4i)(3 + 5i).
a. | 6 + 20i | c. | 10 +
12i | b. | 5 +
9i | d. | -14 +
22i |
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5.
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Simplify the complex square (3 –
2i)2.
a. | 9 – 4i2 | c. | 5 – 12i | b. | 13 | d. | 13 –
12i |
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6.
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Simplify the following complex number: 
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7.
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Find the values of x and y that make the equation
true. 
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8.
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Find the values of x and y that make the equation
true. 
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