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Jaylene Christensen
Mathematics
13 July, 03:52
X-squared plus twenty-five equals zero
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Cristian Lyons
13 July, 04:18
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Subtract 25 from each side of that equation, and it says that x-squared = negative 25. 'X' can't be any real number. If you know how to work with imaginary numbers, you'll know that the two solutions are x=5i and x=-5i ... the ' i ' is the symbol meaning the square root of - 1.
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