Алгебра 8 класс

Сергей Янков Оракул (54428) Pon Pampum, = 4/3a^3b = a(b+a)/a^2 = b+a/a = x-3y/(x-3y)(x+3y) = 1/x+3y = b(a+b)+a(a-b)/b(a-b) = ab+b^2+a^2-ab/b(a-b) = b^2+a^2/b(a-b) = 3x^2(x-1)-3x(x^2-1)/(x^2-1)(x-1) = 3x^3-3x^2-3x^3+3x/(x^2-1)(x-1) = -3x^2+3x/(x^2)(x-1) = -3x(x-1)/(x^2-1)(x-1) = -3x/x^2-1 = 2y^2-2y^2+16y/y-8 = 16y/y-8 = x^2/(x-y)(x+y)*x-y/x = x/x+y = 5(a+b)/b^2*b/a+b - 5/b = 8a^6/b^8 = y^2/x*1/4xy = y/4x^2 = 3(y+2)-3(y-2)/(y-2)(y+2)*(y-2)(y+2)/y+4 = 3y+6-3y+6*1/y+4 = 12/y+4