<span>1,5(a</span>²<span>b)</span>³<span> (-6 2/3ab</span>⁴<span>)=-3/2*20/3*a</span>⁷<span>*b</span>⁷<span>=
- 40 a</span>⁷<span>b</span><span>⁷</span>
<span>3 1/7(-1.4a</span>³<span>b) (ab</span>³<span>)</span>²<span>=
22/7*14/10* a</span>⁵<span>*b</span>⁷<span>=4,4a</span>⁵<span>b</span><span>⁷</span>
556 565 655 656 665 666 555
Это все, может сам(-а) проверить :D
5x+y-4=0
a=5 b=1 c=-4
D=b2-4ac=1+4*5*(-4)=25
x1=0.6
x2=0.4
не пренадлежат