а) (2x-2)/(x^2+9x-10) = 2(x-1)/((x+10)(x-1)) = 2/(x+10)
в) (y^2-6y+8)/(y^2+3y-10) = (y-4)(y-2)/(y+5)(y-2) = (y-4)/(y+5)
с) (2x^2+2x-12)/(4x^2+12x) = 2(x^2+x-6)/4x(x+3) = (2(x-2)(x+3))/(4x(x+3)) = (2(x-2))/(4x) = (x-2)/(2x)
д) (3x-6)/(2x^2+x-10) = 3(x-2)/(2x-5)(x+2) = -3/(2x+5)
а) (2x-2)/(x^2+9x-10) = 2(x-1)/((x+10)(x-1)) = 2/(x+10)
в) (y^2-6y+8)/(y^2+3y-10) = (y-4)(y-2)/(y+5)(y-2) = (y-4)/(y+5)
с) (2x^2+2x-12)/(4x^2+12x) = 2(x^2+x-6)/4x(x+3) = (2(x-2)(x+3))/(4x(x+3)) = (2(x-2))/(4x) = (x-2)/(2x)
д) (3x-6)/(2x^2+x-10) = 3(x-2)/(2x-5)(x+2) = -3/(2x+5)