27*2a^(-2)+bc-2ab-ac

factorize : 2a^2+bc-2ab-ac

Factorise: a ^(2) + bc+ ab +ac

a ^(2) + bc + ab + ac= ?

If a, b and c are distinct positive real numbers such that Delta_(1) = |(a,b,c),(b,c,a),(c,a,b)| and Delta_(2) = |(bc - a^2, ac -b^2, ab - c^2),(ac - b^2, ab - c^2, bc -a^2),(ab -c^2, bc - a^2, ac - b^2)| , then

If |{:(bc-a^(2),ac-b^(2),ab-c^(2)),(ac-b^(2),ab-c^(2),bc-a^(2)),(ab-c^(2),bc-a^(2),ac-b^(2)):}|=k(a^(3)+b^(3)+c^(3)-3abc)^(l) then the value of (k, l) is

Factorize the following expressions a^2+b^2-2(ab+bc-ac)

(a+b+c)(a^(2)+b^(2)+c^(2)-ab-bc-ac)