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

Question

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

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Mackenzie 1 month 2021-08-14T03:36:07+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-14T03:37:51+00:00

    Step-by-step explanation:

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

    0
    2021-08-14T03:37:56+00:00

    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

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