ClarisaKrasovec ClarisaKrasovec

21-06-2015
Mathematics

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x^2 - 4x - 77 = 0 Factor and check

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Аноним Аноним

21-06-2015

x² - 4x - 77 = 0

( x + 7) ( x - 11)

x + 7 = 0

x - 11 = 0

x = -7
x = 11

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