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Laabri

Unit 3B Review

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Last updated about 3 years ago
48 Nsɛmmisa
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26.

Write 3x3 - 81 in factored form.

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27.

What is the real solution to the equation 3x3 - 81 = 0?

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32.

Write an equation in factored form with the solutions

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34.

Fill in the blank:

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1.

Add: (7 - 2i) + (-5 + 11i). Write your answer in the form a + bi or a - bi.

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2.

Subtract: (7 - 2i) - (-5 + 11i). Write your answer in the form a + bi or a - bi.

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3.

Subtract: (8 + i) - (7 - 2i). Write your answer in the form a + bi or a - bi.

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4.

Multiply: (7 - 2i)(-5 + 11i). Write your answer in the form a + bi or a - bi.

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5.

Multiply: (7 - 2i)(8 + i). Write your answer in the form a + bi or a - bi.

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6.

Multiply: (-5 + 11i)(-5 - 11i). Write your answer in the form a + bi or a - bi.

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7.

Evaluate: 5i14

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8.

Evaluate: i73

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9.

Evaluate: (-2i)11

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10.

What is one solution to the equation 7x2 + 63 = 0?

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11.

What is the other solution to the equation 7x2 + 63 = 0?

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12.

What are solutions to the equation x2 +14x + 65 = 0? (Use +/- notation.)

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13.

What is x4 - 27x2 + 50 in factored form? (Remember to factor completely.)

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14.

What is one solution to the equation x4 - 27x2 + 50 = 0?

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15.

What is another solution to the equation x4 - 27x2 + 50 = 0?

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16.

What is a third solution to the equation x4 - 27x2 + 50 = 0?

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17.

What is the fourth solution to the equation x4 - 27x2 + 50 = 0?

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18.

What is one factor of 2x4 + 6x3 + 12x2 + 36x? (Note: factors should be written in parentheses.)

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19.

What is another factor of 2x4 + 6x3 + 12x2 + 36x? (Note: factors should be written in parentheses.)

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20.

What is the third factor of 2x4 + 6x3 + 12x2 + 36x? (Note: factors should be written in parentheses.)

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21.

What is one solution to the equation 2x4 + 6x3 + 12x2 + 36x = 0?

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22.

What is another solution to the equation 2x4 + 6x3 + 12x2 + 36x = 0?

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23.

What is a third solution to the equation 2x4 + 6x3 + 12x2 + 36x = 0?

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24.

What is the last solution to the equation 2x4 + 6x3 + 12x2 + 36x = 0?

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25.

Select ALL of the factors below that are factors of x4 - x3 - 19x2 - 11x + 30.

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28.

What are the imaginary solutions to the equation 3x3 - 81 = 0? (Use +/- notation.)

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29.

Write an equation in standard form with the solutions -9 and 2.

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30.

Write an equation in standard form with the solutions

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31.

Write an equation in factored form with the solutions 0, -1, and 4.

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33.

Match each expression with the graph that could match it based on its end behavior:

Draggable itemarrow_right_altCorresponding Item

-2x4 - x3 + 13x + 1

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graph iii

-2x3 + 7x2 + 2x - 4

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graph iv

6x4 - 19x2 + 3x + 2

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graph i

5x5 + x4 - 12x3 + 9x

arrow_right_alt

graph ii

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35.

Fill in the blank:

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36.

Select ALL of the following that are an exact or approximate location of a local minimum for the graph.

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37.

Select ALL of the following that are an exact or approximate location of a local maximum for the graph.

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38.

Write the function in factored form.

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39.

Fill in the blank:

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40.

Fill in the blank:

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41.

Select ALL of the following that are an exact or approximate location of a local minimum for the graph.

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42.

Select ALL of the following that are an exact or approximate location of a local maximum for the graph.

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43.

Write the function in factored form.

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44.

Fill in the blank:

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45.

Fill in the blank:

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46.

Select ALL of the following that are an exact or approximate location of a local minimum for the graph.

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47.

Select ALL of the following that are an exact or approximate location of a local maximum for the graph.

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48.

Write the function in factored form.