Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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Simplify the radical expression.
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1.
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2.
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3.
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4.
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5.
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6.
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7.
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Simplify the radical expression by rationalizing the denominator.
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8.
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9.
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Simplify the expression.
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10.
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11.
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12.
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(9 +  )(9 –  ) a. | 72 | c. |  | b. |  | d. | 78 |
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13.
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14.
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15.
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Solve the equation. Check your solution.
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16.
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a. |  | b. | 3 | c. | 6 | d. | 36 |
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17.
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18.
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a. | 3 | b. | –3 | c. | –5 | d. |  |
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Solve the equation. Identify any extraneous solutions.
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19.
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a. | 5 is a solution to the original equation. The value –3 is an extraneous
solution. | b. | 3 is a solution to the original equation. The value –5 is an extraneous
solution. | c. | 5 and 3 are both extraneous solutions. | d. | 5 and –3 are
solutions. |
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20.
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a. | 10 is a solution of the original equation. 0 is an extraneous
solution. | b. | –10 is a solution of the original equation. 0 is an extraneous
solution. | c. | 0 and –10 are solutions of the original equation. | d. | 0 is a solution of
the original equation. –10 is an extraneous solution. |
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