Question

expand the following using suitable identities (2x-y+z)²​

Answer 1

Step-by-step explanation:

4xsquareplus y square plus z square -4xy-2yz+4zx

Answer 2

Answer:

2x² + y² + z² - 4xy - 2yz + 4xz

Step-by-step explanation:

(2x - y + z)²

By 3rd identity :-

(a + b + c)² = a² + b² + C² +2ab + 2bc + 2ac

(2x - y + z)² = (2x)² + (-y²) + (z)² + 2(2x) (-y) + 2(-y) (z) + 2(2x)(z)

= 2x² + y² + z² - 4xy - 2yz + 4xz