Question

Put the following in suitable itendies (2x-y+z)^2

Answer 1

Answer:

4x² + y² + z² - 4xy -2yz + 4zx

Step-by-step explanation:

 (2x - y + z)²

using identity

(x + y + z)² = x² + y² + z² + 2xy + 2yz + 2zx

(2x - y + z)² = (2x)² +(- y)² +(z)² + 2(2x) (-y) + 2(-y) (z) + 2(z) (2x )

                   = 4x² + y² + z² - 4xy -2yz + 4zx