3/10y^9-12/5=0
3/10y^9=12/5
y^9=8
Ответ:y=3√2
A(a-5)-(a-2)(a-3)=a^2-5a-a^2-3a-2a+6=-10a+6
(3x-1)(3x+1)+(3x+1)^2=18x^2
15x+25y / 5x= 5(3x+5y) / 5x= 3x+5y / x
5cx-5cy / 15cz= 5c(x-y) / 15cz= x-y / 3z
abc+abd / abcd= ab(c+d) / abcd= c+d / cd
6abs / 2as+4bs= 2s(3ab) / 2s(a+2b)= 3ab / a+2b
axy+5ay / abz+5az= a(xy+5y) / a(bz+5z)= xy+5y / bz+5z
bc+bd / 3c+3d= b(c+d) / 3(c+d)= b / 3