solve x2-(2-3i)x+(10+4i)=0

Dear student

using roots for quadratic equationx=(2-3i)±(2-3i)2-4(10+4i)2=(2-3i)±4+9i2-12i-40-16i2=(2-3i)±-28i-452=(2-3i)±-49+4-28i2=(2-3i)±(7i-2)22=2-3i+7i-22,2-3i-7i+22=2i,2-5i

Regards

  • 4
Hello Ramachandra dear, let the zero of the polynomial be a+i
Plugging (a+ib)^2 - (2-3i)(a+ib) + 10 + 4i = 0
Expanding and collecting real and imaginary parts
{(a^2 - b^2) -(2a+3b) + 10} + i{2 a b +3a -2b + 4} = 0 
Equating real and imaginary parts on both sides we have
(a^2 - b^2) -(2a+3b) + 10 = 0
2 a b +3a -2b + 4 = 0
If there be any mathematical technique to solve for a and b then we can get the zero of the given quadratic equation.

 
  • 0
What are you looking for?