А) 3x-6y = 3(x-2y)
б) 9x^2y+18xy = 9xy(x+2)
в) 3(3x-y)-2y(3x-y) = (3x-y)(3-2y)
г) 13m-13n+m^2-mn = 13(m-n)+m(m-n) = (m-n)(13+m)
А) x^2/5y и z-3/y^2 <=> (y*x^2) / 5y^2 и (5z-15) / 5y^2
4x-(7x-2)=17
4x-7x+2=17
-3x=15
X=-5
F ' (x) = (x^6 - 1/x^4) ' = (x^6 - x^(-4)) ' = 6x^5 + 4x^(-5)
4y^2*(y^3+1)=4y^5+4y^2. ^-это степень.