Solve by Taking Square Roots
an hour ago
wilsonan_42020
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10 QuestionsShow answers
  • Question 1
    120 seconds
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    Q.

     4r210=264r^2-10=-26  

    answer choices

     22  

     4-4  

     ±2i\pm2i  

     ±i2\pm i\sqrt{2}  

  • Question 2
    120 seconds
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    Q.

     3r2+7=373r^2+7=37  

    answer choices

     ±10\pm10  

     ±10\pm\sqrt{10}  

     10\sqrt{10}  

     ±5\pm5  

  • Question 3
    120 seconds
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    Q.

     1+5p2=86-1+5p^2=-86  

    answer choices

     ±17\pm\sqrt{17}  

     ±17i\pm17i  

     17-17  

     ±i17\pm i\sqrt{17}  

  • Question 4
    120 seconds
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    Q.

     10x26=143410x^2-6=1434  

    answer choices

     ±12\pm12  

     ±12\pm\sqrt{12}  

     ±23\pm2\sqrt{3}  

     1212  

  • Question 5
    120 seconds
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    Q.

     9v2=504-9v^2=-504  

    answer choices

     ±56\pm\sqrt{56}  

     ±214\pm2\sqrt{14}  

     5656  

     ±27\pm2\sqrt{7}  

  • Question 6
    120 seconds
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    Q.

     5+7m2=7195+7m^2=719  

    answer choices

     102102  

     ±251\pm2\sqrt{51}  

     ±102\pm\sqrt{102}  

     5151  

  • Question 7
    120 seconds
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    Q.

     12x2+4=23612x^2+4=-236  

    answer choices

     ±2i5\pm2i\sqrt{5}  

     20-\sqrt{20}  

     ±20i\pm20i  

     ±5i2\pm5i\sqrt{2}  

  • Question 8
    120 seconds
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    Q.

     3m22=1063m^2-2=106  

    answer choices

     ±6\pm\sqrt{6}  

     ±6\pm6  

     66  

     3636  

  • Question 9
    120 seconds
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    Q.

     49n2+6=7049n^2+6=70  

    answer choices

     ±87\pm\frac{8}{7}  

     ±87\pm\sqrt{\frac{8}{7}}  

     87\frac{8}{7}  

     ±78\pm\frac{7}{8}  

  • Question 10
    120 seconds
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    Q.

     9r22=6469r^2-2=646  

    answer choices

     ±26\pm2\sqrt{6}  

     ±38\pm3\sqrt{8}  

     ±218\pm2\sqrt{18}  

     ±62\pm6\sqrt{2}  

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