Сделаем замену
>0 ОДЗ: x ≤ 0
Тогда
5m² - 17m + 6 = 0
D = (- 17)² - 4 * 5 * 6 = 289 - 120 = 169 = 13²
<span>x^2-34x+289=0
D1 = 289 - 289 =0
x = 17
</span>
4x²-6x-10=0
D=b²-4ac=36-4*4*(-10)=36-16*(-10)=36+160=
=14
x₁=
x₂=
y=2*2,5+1=6
y=2*(-1)+1=-2+1=-1
См. вложение
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