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steph2478
15.07.2019 •
Mathematics
Which two values of x are roots of the polynomial below? x2 + 5x + 7
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Ответ:
x² +5x+7=0
a=1, b=5, c=7
D= b² - 4ac = 25 -4*1*7= 25 - 28 =-3
Because the D<0, there are no real roots, only imaginary roots.
Ответ: