Question

найти дискриминант
3x^2+x-11=0

Answer 1

1+4*3*11=133
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Answer 2

$3x^2+x-11=0\\D=b^2-4ac=1^2-4cdot 3cdot (-11)=133\\x_{1,2}=frac{-1pm sqrt{133}}{6}$