Question

x²+y²+9z²+2xy+6yz+6xz​

Answer 1

Answer:

(i) x2 + y2 + 9z2 + 2xy + 6yz + 6xz

= x2+(y)2+(3z)2+ 2(x)(y)+2(y)(3z)+2(x)(3z)

= (x + y + 3z)2

Step-by-step explanation:

Hope it helps u✓