The values of x such that
2x^2 - 6x + 5 = -4
are m + ni and m - ni, where m and n are positive. What is mn?
What is mn?
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\(2x^2 - 6x + 5 = -4\\ x^2-3x+4.5=0\\ x=1.5\pm \sqrt{2.25-4.5}\\ x=1.5\pm \sqrt{-2.25}\\ x=1.5\pm 1.5i\)
\(m=1.5,\ n=1.5\\ \color{blue}mn=2.25\)
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