Question

( x - 3 )² = -2x²
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Answer 1

( x - 3 )² = -2x²

( x - 3 ).( x - 3 ) = -2x²

x²-6x+9=-2x²

3x²-6x+9=0

*bhaskará

$x=\frac{-(-6) +- \sqrt{(-6)²-4.3.9} }{2.3} \\x=\frac{6+-\sqrt{-72} }{6} \\x= 6+- 6i\sqrt{2} \\x1=\frac{6(1-i\sqrt{2})}{6} \\x1=1-i\sqrt{2} \\x2=1+i\sqrt{2}$