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Black Advanced Problems in Mathematics
Exam
Black Advanced Problems in Mathematics
Subject
Mathematics
Chapter
Quadratic Equation

Black Advanced Problems in Mathematics · Mathematics · Quadratic Equation

If x = 4 + 3i (where i = -1 ), then the value of x^3 - 4x^2 - 7x +...

If x=4+3ix = 4 + 3i (where i=−1i = \sqrt{-1}), then the value of x3−4x2−7x+12x^3 - 4x^2 - 7x + 12 equals:

Options

  1. A-88
  2. B48+36i48 + 36i
  3. C−256+12i-256 + 12i
  4. D-84.

Correct answer

A. -88

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