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ExtremeBDS [4]
3 years ago
7

Solve the equation. 6x=2x^2+1

Mathematics
1 answer:
7nadin3 [17]3 years ago
7 0
6x = 2x^2 + 1
2x^2 - 6x + 1 = 0
x= \frac{-(-6) \pm \sqrt{(-6)^2-(4 \times 2 \times 1)}}{2 \times 2}\\=\frac{6\pm\sqrt{36-8}}{4}\\=\frac{6\pm\sqrt{28}}{4}\\=\frac{6\pm2\sqrt{7}}{4}\\=\frac{3\pm\sqrt{7}}{2}\\=\frac{3+\sqrt{7}}{2}\,or\,\frac{3-\sqrt{7}}{2}
 
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