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Type: Multiple-Choice
Category: Complex Numbers
Level: Grade 11
Standards: HSN-CN.C.8
Author: Morgan0815
Last Modified: 7 years ago

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Grade 11 Complex Numbers CCSS: HSN-CN.C.8

Factor the quadratic expression x2+81.
  1. (x+9i)(x-9i)
  2. (x+9i)(x+9i)
  3. (x-9i)(x-9i)
  4. (x+9i2)(x+9i2)