5(x+iy)(x-iy)+3(x+iy -x +iy) =42-15i
5x^2+5y^2 + 6iy = 42-15i
5 x^2 + 5 y^2 = 42
6 i y = -15i
y = -15/6
5 x^2 + 5 (225/36) = 42
Find the complex number which satisfied the equation 5zz ̅+3(z-z ̅)=42 – 15j
1 answer
1 answer