Determine whether the complex number is a solution of the equation.
-$1+2 \mathrm{i}$;
$y^{2}-3 y+3=0$

Name: Determine whether the complex number is a solution of the equation. -$1+2 \mathrm{i}$; $y^{2}-3 y+3=0$
Brand: Quizplus
Rating: 4.7 (43 reviews)

Question

Quizplus · Accepted Answer

Substituting $1+2i$ into the equation $y^2 - 3y + 3 = 0$ gives $(1+2i)^2 - 3(1+2i) + 3$, which simplifies to $-2 + 4i \neq 0$, indicating $1+2i$ is not a solution.

Determine Whether the Complex Number Is a Solution of the Equation