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If A = 2 + 7i, B = 5 + 8i, and C = 1 + 3i , where i is the imaginary unit. Find B-AC, give your answer as a complex number in standard form.
Please give full answer

If A 2 7i B 5 8i and C 1 3i where i is the imaginary unit Find BAC give your answer as a complex number in standard form Please give full answer class=

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mhanifa

Answer:

  • 24 - 5i

Step-by-step explanation:

Given

  • A = 2 + 7i
  • B = 5 + 8i
  • C = 1 + 3i

To find

  • Value of B - AC in standard form

Solution

  • B - AC =
  • 5 + 8i - (2 + 7i)(1 + 3i) =
  • 5 + 8i - 2 - 7i - 6i - 21i² =
  • 3 - 5i + 21 =
  • 24 - 5i

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