[" following: "],[" 73."4x^(2)+8y^(2)+12xy]

Factorise the following : 4x^(2) + 8y^(2) + 12xy

Factories the following : 4x^(2) + 9y^(2) + 25z^(2) + 12xy + 30 y z + 20 xz

Factorise: 4x ^(2) + 9y^(2) + 12 xy

Simplify the following: 7x^(3)+8y^(3)-(4x+3y)(16x^(2)-12xy+9y^(2))(6m-n)(36m^(2)+6mm+n^(2))-(3m+2n)^(3)

Find the equations of the tangent and the normal to the following curves : (a) 4x^(3)-3xy^(2)+6x^(2)-5xy-8y^(2)+9x+14=0 at the point (-2,3) (b) x^(5)+y^(5)-2xy=0 at the point (1,1)

Check whether the following are perfect squares or not : (a) 64x^(2) + 81y^(2) - 144 xy (b) 4x^(2) + 8y^(2) + 16 xy

Find the angle of intersection of the following curves: xy=6 and x^(2)y=12y^(2)=4x and x^(2)=4y