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Sticky Note
What is the value of (4 + a) (4 - b) when a = 4 and b = - 4?
  1. 64
  2. 74
  3. 84
  4. None of these
Explanation

To find the value of (4 + a)(4 - b), substitute a = 4 and b = -4:

(4 + 4)(4 - (-4))

= (8)(8)

= 64

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