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Gnom [1K]
4 years ago
5

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

Mathematics
1 answer:
Elza [17]4 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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3 years ago
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ehidna [41]

Answer:

well, we do not have the options here, but we can find the equation of the graph, so the equations that are different from that are the answer to this question:

in the graph, we can see that it goes through the points:

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then the slope for our line is:

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5 0
3 years ago
72 is 60% of what number? Enter your answer in the box.
Sindrei [870]
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5 0
4 years ago
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