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Gnom [1K]
3 years ago
5

Solve this quadratic equation by completing the square. (2x^2 = -8x + 45)

Mathematics
1 answer:
Elza [17]3 years ago
8 0
(2x^2 = -8x + 45) \\ \\ 2x^2 + 8x - 45 = 0 \\ \\ x =  \frac{-8+2 \sqrt{106} }{4} ,  \frac{-8-2 \sqrt{106} }{4} \\ \\ x = - \frac{4- \sqrt{106} }{2} , - \frac{4+  \sqrt{106} }{2} \\ \\ Answer: x = - \frac{4- \sqrt{106} }{2} , - \frac{4+  \sqrt{106} }{2}
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