Помогите решить 2 задания, на фото.
1) xy+y^2/15x * 3x/x+y = y(x+y)/15x*3x/x+y = y/5 = 7.5/5= 1,5 2) (10x/2x-3) - 5x = 10x-5x*(2x-3) / 2x-3 = 10x-10x^2+15x / 2x-3 = 25x-10x^2 / 2x-3 = 25*0.5 - 10*0.5^2 / 2*0.5-3 = 12.5-2.5 / -2 = 10/ (-2) = -5
