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Twelfth Grade (Grade 12) Complex Numbers Questions

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Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor. x2+16
  1. 16i
  2. (x-4i)(x+4i)
  3. ±4
  4. (x+2i)(x-2i)
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor. x2+12
  1. 23i
  2. (x-4i)(x+4i)
  3. ±12
  4. (x+23i)(x-23i)
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor. x2+64
  1. (x+8i)(x-8i)
  2. (x-8)(x+8)
  3. ±64
  4. (x+64i)(x-64i)
Grade 12 Complex Numbers
a + bi is an example of                   of complex numbers.
  1. trig form
  2. polar form
  3. rectangular form
  4. none of the above
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Find the roots of x2+12.
  1. 23
  2. ±23i
  3. ±12
  4. (x+23i)(x-23i)
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor. x2+100
  1. 100i
  2. (x-10)(x+10)
  3. ±100
  4. (x+10i)(x-10i)
Grade 12 Complex Numbers CCSS: HSN-CN.A.2
(4i)2
  1. 16i
  2. 4
  3. -16
  4. 8i
Grade 12 Complex Numbers CCSS: HSN-CN.A.2
(6+5i)-(-2+i)
  1. 4+4i
  2. 8+4i
  3. 10i
  4. 12i