Solve Equations

What method of solving equations should you use for this equation?

 $2x^2+5=0$  

• factoring

• use square roots

• both methods work

• neither method works

How many solutions and what type of solutions does this equation have?

 $2x^2+5=0$  

• two integers exist

• two imaginary solutions exist

• two real solutions that involve a square root exist

• no solutions exist

What method of solving equations should you use for this equation?

 $2x^2+4x=0$  

• factoring

• use square roots

• both methods work

• neither method works

Which of the following is a solution to the given equation?

(mark all that apply)
 $2x^2+4x=0$  

• 0

• -2

• 2

•  $\frac{-1}{2}$  

Solve the given equation  (mark all that apply)

 $-16x^2+32x=0$  

• 0

• -2

• 2

•  $\frac{1}{2}$  

•  $\frac{-1}{2}$  

Solve the given equation (mark all that apply)

 $5x^3+160=0$ 

• 
• 
• 
• 

How many solutions does this equation have?

 $5x^3+160=0$ 

• 0

• 1

• 2

• 3

• none of these

What type of solutions does this equation have?

 $5x^3+160=0$ 

• 0 real solutions

  3 imaginary solutions

• 1 real solutions

  2 imaginary solutions

• 2 real solutions

  1 imaginary solutions

• 3 real solutions

• none of these

How many solutions does this equation have?

 $3x^3-81x=0$ 

• 0

• 1

• 2

• 3

• none of these

What type of solutions does this equation have?

 $3x^3-81x=0$ 

• 0 real solutions

  3 imaginary solutions

• 1 real solution

  2 imaginary solutions

• 2 real solutions

  1 imaginary solution

• 3 real solutions

• none of these