Question

expand 2 x minus y + 3z
whole square​

Answer 1

2 into x minus y plus 3 into z

Answer 2

Answer:

4x²+y²+9z²-4xy+12xz-9yz

Step-by-step explanation:

Q) ( 2 x-y+3 z)²

⇒ (2 x -y+ 3 z)(2 x -y+ 3 z)

⇒ 2 x(2 x -y+ 3 z)-y(2 x -y+ 3 z)+3 z(2 x -y+ 3 z)

⇒ 4 x²-2xy+6xz -2xy+y²-3yz + 6xz-3yz +9z²

⇒ 4x²+y²+9z²-2xy-2xy+6xz+6xz-3yz-3yz

⇒ 4x²+y²+9z²-4xy+12xz-9yz

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i hope it will helps you friend