If `2^x 3^(x+4)=7^x` then x =

If A = 3x^(2) + 2x - 7 and B = 7x^(3) - 3x + 4 , then find : A - B

If A = 3x^(2) + 2x - 7 and B = 7x^(3) - 3x + 4 , then find : A + B

If |{:(x,3,6),(3,6,x),(6,x,3):}|=|{:(2,x,7),(x,7,2),(7,2,x):}|=|{:(4,5,x),(5,x,4),(x,4,5):}|=0 then x is equal to

If |(x,3,6),(3,6,x),(6,x,3)|=|(2,x,7),(x,7,2),(7,2,x)|=|(4,5,x),(5,x,4),(x,4,5)|=0 , then x is equal to a)9 b)-9 c)0 c)-1

If |{:(x,3,6),(3,6,x),(6,x,3):}|=|{:(2,x,7),(x,7,2),(7,2,x):}|=|{:(4,5,x),(5,x,4),(x,4,5):}|=0 then x is equal to