Найти производную от функции f (x)=(b+c)^3+(c+a)^3+(a+b)^3-3(b+c)*(c+a)*(a+b)-2(a^3+b^3+c^3-3abc)

f(x)\' = ((b + c)^3 + (c + a)^3 + (a + b)^3 - 3(b + c)*(c + a)*(a + b) - 2(a^3 + b^3 + c^3 - 3abc))’ = ((b + c)^3)’ + ((c + a)^3)’ + ((a + b)^3)’ – (3(b + c)*(c + a)*(a + b))’ – (2(a^3 + b^3 + c^3 - 3abc))’ = (b + c)’ * ((b + c)^3)’ + (c + a)’ * ((c + a)^3)’ + (a + b)’ * ((a + b)^3)’ – (6abc + 3cb^2 + 3ba^2 + 3ab^2 + 3ac^2 + 3cb^2 + 3ca^2 )’ – (2a^3 + 2b^3 + 2c^3 - 6abc)’ = (b + c)’ * ((b + c)^3)’ + (c + a)’ * ((c + a)^3)’ + (a + b)’ * ((a + b)^3)’ – (6abc)’ + (3cb^2)’ + (3ba^2)’ + (3ab^2)’ + (3ac^2)’ + (3cb^2)’ + (3ca^2 )’ – (2a^3)’ + (2b^3)’ + (2c^3)’ – (6abc)’.