Online Self-Tests(E13)

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  1. If x– 2 = –5, find the value of x².

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  (1 point)

  
  

  Answer:

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  2. Evaluate the expression below if x× (–2) = 4.

  2 × (x– 2)

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  (1 point)

  
  

  Answer:

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  3. Evaluate the expression below if x= 2 and y = –12.

  x + y

  2

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  (1 point)

  
  

  Answer:

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  4. Evaluate the expression below if x = –3 and y = –2.

  2x

  –

  2y

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  (1 point)

  
  

  Answer:

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  5. Evaluate the expression below if x= 24 and y= –3.

  x÷ y

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  (1 point)

  
  

  Answer:

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  6. If x× 2 = –4 and y= 2, find the value of (x– y)².

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  (1 point)

  
  

  Answer:

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