Mathematics

Mathematics

Problem

5. Factorise: (i) 4x2+9y2+16z2+12xy−24yz−16xz4 x^{2}+9 y^{2}+16 z^{2}+12 x y-24 y z-16 x z (ii) 2x2+y2+8z2−22xy+42yz−8xz2 x^{2}+y^{2}+8 z^{2}-2 \sqrt{2} x y+4 \sqrt{2} y z-8 x z

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