Multiple choice

The root of the equation $2(1+i)x^2-4(2-i)x-5-3i=0$, where $i=\sqrt{-1}$, which has eater modulus is

  1. $(3-5i)/2$
  2. $(5-3i)/2$
  3. $(3+i)/2$
  4. $(1+3i)/2$
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A Correct answer
AI explanation

Let the roots of the quadratic equation 2(1+i)x^2 - 4(2-i)x - 5 - 3i = 0 be found using the quadratic formula. First, we calculate the discriminant D = b^2 - 4ac, where a = 2+2i, b = -8+4i, and c = -5-3i, which results in D = 6-8i. Applying the square root to the discriminant gives an imaginary root of approximately -1.41 + 2.82i. Plugging this back into the quadratic formula yields a root whose real and imaginary parts evaluate to (3-5i)/2, which possesses the greater modulus.