Х^2+17-108=0
D= 17^2-4*(-108)=721
x1=(-17+√721)/2
x2=(-17-√721)/2
x^2-5x+6=0
D=25-4*6=1
x1=(5+1)/2=3
x2=(5-1)/2=2
4 <span>3/13</span>÷<span>119/26</span>=<span>4 · 13 + 3/13</span>÷<span>119/26</span>=<span>55/13</span>÷<span>119/26</span>=<span>55/13</span>·<span>26/119</span>=<span>55 · 26/13 · 119</span>=<span>1430/1547</span>=<span>110 · 13/119 · 13</span>=<span>110/119
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Если уравнение такое -7x+py-2p=0, то
-7*(-2)+p*3-2p=0
p=-14