Solving Quadratic Equation using Extracting the square root

What is the root of

 $\sqrt{x+4}=5$  

• 20

• 21

• 22

• 23

Solve the quadratic equation using extracting the square roots

 $m^2+7=88$  

• ±81

• ±9

• ±3

• No real solution

Find the solutions of quadratic equation

 $7x^2=-21$  

• √3

• ±√3

• -3

• No real solution

 $36n^2=9$  

Solve using extracting the square roots.

• ± 1/4

• ± 9/36

• ± 1/2

• No real solution

Solve 7x² + 1 = 8

• ± 1

• ± 7

• ± √7

• ± 8

What are the roots of quadratic equation?

5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Solve  $\left(x+3\right)^2-5=9$  

•  $\pm\sqrt{14}-3$  
  

•  $\sqrt{14-3}$  
  

• ±11

• ±5

Find the solutions of

(x - 2 )² = 49

• -5, 9

• ^{7, -7}

• 9, -5

• ^{9, -9}

In quadratic equation, what is the highest degree of the variable?

• 1

• 2

• 3

• 4

What is the best way to solve x² = 9?