14-12-2019
Mathematics

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10
Using the quadratic formula to solve x2 = 5 – X, what are the values of x?

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kotime1 kotime1

14-12-2019

x^2 = 5 - x

x^2 + x - 5 = 0

-1 +/-[tex] \frac{ \sqrt{ {1}^{2} - 4(1 \times - 5) } }{2} [/tex]

x = (1 + √21) / 2

x = (1 - √21) / 2

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