Question

(ii) 2x² + y2 + 8z? – 2/2 xy
xy + 412 yz - 8xz​

Answer 1

Answer:

Step-by-step explanation:

4x^2+9y^2+16z^2+12xy-24yz-16xz

=(2x)^2+(3y)^2+(-4z)^2+2(2x)(3y)+2(3y)(-4z)+2(-4z)(2x)

=(2x+3y-4z)^2