use suitable Identity. (x+2y+4z)² (x+2) (x-2)​

Question

use suitable Identity.
(x+2y+4z)²
(x+2) (x-2)​

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Hailey 1 month 2021-08-17T14:08:42+00:00 1 Answer 0 views 0

Answers ( )

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    2021-08-17T14:09:55+00:00

    (x+2y+4z)²

    (a+b+c)² = a² + b² + c² + 2ab + 2bc + 2ca

    x²+2y²+4z²+2(x)(2y)+2(2y)(4z)+2(4z)(x)

    x²+2y²+4z²+4xy+16yz+8zx

    (x+2) (x-2)

    (x)² – (2)²

    x²- 4

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