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

$4r^2-10=-26$

$2$

$-4$

$\pm2i$

$\pm i\sqrt{2}$

• Question 2
120 seconds
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Q.

$3r^2+7=37$

$\pm10$

$\pm\sqrt{10}$

$\sqrt{10}$

$\pm5$

• Question 3
120 seconds
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Q.

$-1+5p^2=-86$

$\pm\sqrt{17}$

$\pm17i$

$-17$

$\pm i\sqrt{17}$

• Question 4
120 seconds
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Q.

$10x^2-6=1434$

$\pm12$

$\pm\sqrt{12}$

$\pm2\sqrt{3}$

$12$

• Question 5
120 seconds
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Q.

$-9v^2=-504$

$\pm\sqrt{56}$

$\pm2\sqrt{14}$

$56$

$\pm2\sqrt{7}$

• Question 6
120 seconds
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Q.

$5+7m^2=719$

$102$

$\pm2\sqrt{51}$

$\pm\sqrt{102}$

$51$

• Question 7
120 seconds
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Q.

$12x^2+4=-236$

$\pm2i\sqrt{5}$

$-\sqrt{20}$

$\pm20i$

$\pm5i\sqrt{2}$

• Question 8
120 seconds
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Q.

$3m^2-2=106$

$\pm\sqrt{6}$

$\pm6$

$6$

$36$

• Question 9
120 seconds
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Q.

$49n^2+6=70$

$\pm\frac{8}{7}$

$\pm\sqrt{\frac{8}{7}}$

$\frac{8}{7}$

$\pm\frac{7}{8}$

• Question 10
120 seconds
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Q.

$9r^2-2=646$

$\pm2\sqrt{6}$
$\pm3\sqrt{8}$
$\pm2\sqrt{18}$
$\pm6\sqrt{2}$