Sender: Jason On
Subject: Complex Number

Question:

Solve the following equations,expressing solutions in the form p + iq.

  1. sqr(x) + 2x - 1 = 0,
  2. sqr(x) + 2x - 3 = 0.

Hi Jason,

Your first example doesn't factor so to solve it you need to use the general quadratic which says that if

a x2 = b x + c = 0

then

For your example 1. a = 1, b = 2 and c = -1 so

This is in the form p + iq with q = 0.

Cheers,
Harley

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