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9 February, 10:44

What is the value of this expression when x = - 1 and y = 2?

4x³y²

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Answers (1)
  1. 9 February, 13:17
    0
    Substituting in you get 4 (-1) ^3 * (2) ^2. - 1 cubed is - 1 and 2 squared is 4. So you get - 4*4 = - 16 as your answer.
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