Level:
Project ID:
1003082307
Source Problem:
Accepted:
1
Clonable:
0
Easy:
0
Let \( z_1 = x^2 + 9y\,\mathrm{i}-20\,\mathrm{i} \) and \( z_2 = 7x-12+ y^2\,\mathrm{i} \). Find all \( [x,y] \in \mathbb{R}\times\mathbb{R} \) such that \( z_1= z_2 \).
\( [x,y]\in\left\{[3,4], [3,5], [4,4], [4,5]\right\} \)
\( [x,y]\in\left\{[4,3], [4,4], [5,3], [5,4]\right\} \)
\( [x,y]\in\left\{[-3,-4], [-3,-5], [-4,-4], [-4,-5]\right\} \)
\( [x,y]\in\left\{[-4,-3], [-4,-4], [-5,-3], [-5,-4]\right\} \)