Question

6. Factorise : x2 + 9y2 + 4z2 + 6xy – 12yz – 4zx .​

Answer 1

Answer:

( x + 3y + 2z)²

Step-by-step explanation:

= x² + 9y² + 4z² + 6xy - 12yz - 4xz

= (x)² + (3y) ² + (2z) ² + 2( 3xy - 6yz + 2xz )

= ( x + 3y + 2z )²

Answer 2

Answer:

( x + 3y + 2z )²

Step-by-step explanation:

= x² + 9y² + 4z² + 6xy - 12yz - 4xz

= (x)² + (3y) ² + (2z) ² + 2( 3xy - 6yz + 2xz )

= ( x + 3y + 2z )²