1 Complex Numbers Chapter 12. 2 Previously, when we encountered an equation like x 2 + 4 = 0, we said that there was no solution since solving for x yielded.
Algebra and functions review
[M.V._Makarets,_V._Yu._Reshetnyak.]_Ordinary_diffe(BookFi.org)-2.pdf
![[M.V._Makarets,_V._Yu._Reshetnyak.]_Ordinary_diffe(BookFi.org)-2.pdf](https://static.fdocuments.us/doc/330x215/55cf9763550346d033915c0b/mvmakaretsvyureshetnyakordinarydiffebookfiorg-2pdf.jpg)
