1.

Factorise 4X square + 9 y square + 16 z square + 12 x y - 24 yz-16xz

Answer»

4x²+9y²+16z²+12xy-24yz-16xz

= (2X)²+(3Y)²+(-4Z)²+2[(2x)(3y)+(3y)(-4z)+(-4z)(2x)]

=(2x+3y-4z)²



Discussion

No Comment Found

Related InterviewSolutions