Question

For which of the following is x=-5 a solution. Select all that apply

1. X+10=-5

2. -x^2+50=25

3. |2X|=10

4. X=O

5. 2x<10

Answer 1

Answer/step-by-step explanation:

Number 1:

• x + 10 = -5
• x = -15
• No.

Number 2:

• 
  `-x^(2) + 50 = 25`
• 
  `-x^(2) = -25`
• 
  `x^(2) = 25`

• 
  `x = -5,5`
• Yes.

Number 3:

• 
  `|2x| = 10`
• 
  `2x = 10`
• 
  `x = 5`
• 
  `2x = -10`
• 
  `x = -5`
• Yes.

Number 4:

• 
  `x < 0`

• 
  `-5 < 0`

• Yes.

Number 5:

• 
  `2x < 10`
• 
  `x < 5`
• 
  `-5 < 5`
• Yes.