Question

Expend (2x+y+z)²


please answer ​

Answer 1

Answer:

4x^2+y^2+z^2+4xy+2yz+4zx

Step-by-step explanation:

(2x)^2+y^2+z^2+[2 (2x)(y)]+2yz+[2(z)(2x)]

using property: (x+y+z)^2

4x^2+y^2+z^2+4xy+2yz+4zx

Answer 2

$(2x + y + z)^{2}$

$we \: know \: that \: \\ (a + b + c) ^{2} =(a^{2} + b^{2} + c^{2} + \\2ab + 2bc + 2ca)$

$4x^{2} + y^{2} + z^{2}+8xy+2yz + 4xz$

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