Solving Quadratics Using Square Roots

Authored by Michael Grassel

Mathematics

8th - 10th Grade

CCSS covered

Used 124+ times

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10 questions

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

±81

±9

±3

No real solution

Tags

CCSS.8.EE.A.2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Solve for x:
(x+6)²=49

x=7,12

x=±7

x=1,-13

x=43,-55

Tags

CCSS.8.EE.A.2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

12. Solve by factoring
(x - 2 )² = 49

-5, 8

^{7, -7}

9, -5

^{9, -9}

Tags

CCSS.8.EE.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve by taking square roots:
5b² - 4 = 41

b = 9, b = -9

b = 3, b = -3

b = 8, b = -8

no solution

Tags

CCSS.HSA-REI.B.4B

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve by taking square roots:
k² - 6 = 43

k = √37

k = 37 or - 37

k = 7, k = -7

no solution

Tags

CCSS.HSA-REI.B.4B

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

{12.88,-12.88}

{13.22,-13.22}

{16}

No real solution

Tags

CCSS.8.EE.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve using square roots.

±√9

±3

±1

No real solution

Tags

CCSS.8.EE.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve: $x^2+8=28$

No solution

$x=\pm4\sqrt{5}$

$x=\pm6$

$x=\pm2\sqrt{5}$

Tags

CCSS.8.EE.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve: $7x^2=-21$

$x=\pm\sqrt{3}$

No real solution

$x=\pm2\sqrt{7}$

$x=\pm\sqrt{14}$

Tags

CCSS.8.EE.A.2

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Solving Quadratics Using Square Roots

Solve for x: (x+6)2=49

12. Solve by factoring (x - 2 )2 = 49

Solve by taking square roots:5b2 - 4 = 41

Solve by taking square roots:k2 - 6 = 43

Solve using square roots.

Solve: x2+8=28x^2+8=28x2+8=28

Solve: 7x2=−217x^2=-217x2=−21

Solve.4m2 - 100 = 0

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Solve for x:
(x+6)²=49

12. Solve by factoring
(x - 2 )² = 49

Solve by taking square roots:
5b² - 4 = 41

Solve by taking square roots:
k² - 6 = 43

Solve: $x^2+8=28$

Solve: $7x^2=-21$

Solve.
4m² - 100 = 0