Через дискреминант Срочно!!!! Помогите!!! 1
a) x(2)-4x-32
б) 2x(2)-9+4
2
x(2)+13x+40/x(2)-25= (x+8)·(x+5)/(x-5)·(x+5)=
3
(y/y(2)+2y-3 - y-1/y(2)-9) / y+1/y(2)-4y+3
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