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4.6 Solving Quadratic Equations by Finding Square Roots

Authored by Carrie Soellner

Mathematics

10th - 12th Grade

CCSS covered

Used 90+ times

4.6 Solving Quadratic Equations by Finding Square Roots
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18 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 x2144=0x^2-144=0  

 x=±12x=\pm12  

x = 12

x = -12

 x=±12ix=\pm12i  

Tags

CCSS.HSA-REI.B.4B

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 x224=0x^2-24=0  

 x=±2i6x=\pm2i\sqrt{6}  

 x=24x=\sqrt{24}  

 x=26x=2\sqrt{6}  

 x=±26x=\pm2\sqrt{6}  

Tags

CCSS.HSA-REI.B.4B

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt


 x28=62x^2-8=-62  

 x=3i6x=3i\sqrt{6}  

 x=±3i6x=\pm3i\sqrt{6}  

 x=±i70x=\pm i\sqrt{70}  

 x=±70x=\pm\sqrt{70}  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt


 42x2=242-x^2=2  

 x=±210x=\pm2\sqrt{10}  

 x=±2i10x=\pm2i\sqrt{10}  

 x=±211x=\pm2\sqrt{11}  

 x=±2i11x=\pm2i\sqrt{11}  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt


 3x2+7=163x^2+7=16  

 x=3x=\sqrt{3}  

 x=±i3x=\pm i\sqrt{3}  

 x=±3x=\pm\sqrt{3}  

 x=±333x=\pm\frac{3\sqrt{3}}{3}  

Tags

CCSS.8.EE.A.2

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt


 8x2=32-8x^2=32  

x = 2

 x=±2x=\pm2  

 x=2ix=2i  

 x=±2ix=\pm2i  

Tags

CCSS.8.EE.A.2

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt


 62x2=426-2x^2=42  

 x=±3i2x=\pm3i\sqrt{2}  

 x=±46x=\pm4\sqrt{6}  

 x=±32x=\pm3\sqrt{2}  

 x=±4i6x=\pm4i\sqrt{6}  

Tags

CCSS.8.EE.A.2

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