4x 2 + 2y 2 + z 2 +8xy + yz + 4xz - 4x 2 + 2xy - 4xz = ? Steps please.
Answers
Answered by
6
4x2-4x2+4xz-4xz+2y2+z2+8xy+2xy+yz
=2y2+z2+10xy+yz
=2y2+10xy+z2+yz
=2y2+10xy+(z+y)2-2yz
=10xy+(z+y)2 or 10xy+z2+y2+2yz
=2y2+z2+10xy+yz
=2y2+10xy+z2+yz
=2y2+10xy+(z+y)2-2yz
=10xy+(z+y)2 or 10xy+z2+y2+2yz
Similar questions