Factorize : 16xy + `9y^2`

Factorize 6xy + 12y^(2)

Factorise : 25x^2 + 16y^2 + 42^2 - 40xy + 16yz -20xz .

Common factors of 6xy, 9y^2

Factorise the following using appropri ate identities : 16x^2 + 24xy +9y^2

Factorise 4x^2 + 9y^2 + 25z^2- 12xy-30yz + 20zx .

If (y-3) is a factor of y ^(3) - 2y ^(2) - 9y+ 18 then find the other two factors.

Factories (i) 25 x ^(2) + 16 y ^(2) + 4z ^(2) - 40 xy + 16 yz - 20zx (ii) 9a ^(2) + 4b ^(2) + 16 c ^(2) + 12 ab - 16 bc - 24 ca

Factorise 9x^2+y^2+16z^2-6xy-8yz+24zx

The radius of the director circle of 16x^(2)+9y^(2)=144 is