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kenad888
@kenad888
July 2022
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x^2+13x+12=0 решите
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ShirokovP
Verified answer
X^2 + 13x + 12 = 0
D = 169 - 48 = 121
x1 = ( - 13 + 11)/2 = - 2/2 = - 1
x2 = ( - 13 - 11)/2 = - 24/2 = - 12
18 votes
Thanks 26
стасян7
X^2+13x+12=0
D=b^2-4ac=169-4*12=121
x1=-b+кореньD разделить на 2a=-13+11/2=-1
x2=b-кореньD /2а=-13-11/2=-12
7 votes
Thanks 12
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Answers & Comments
Verified answer
X^2 + 13x + 12 = 0D = 169 - 48 = 121
x1 = ( - 13 + 11)/2 = - 2/2 = - 1
x2 = ( - 13 - 11)/2 = - 24/2 = - 12
D=b^2-4ac=169-4*12=121
x1=-b+кореньD разделить на 2a=-13+11/2=-1
x2=b-кореньD /2а=-13-11/2=-12