expand by using suitable identity (2x-y+z)^2
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Answer:
4x^2-4xy+4xz+y^2-2xy+3xz+z^2
Step-by-step explanation:
= (2x-y+z)^2
= (2x-y+z) (2x-y+z)
= 4x^2-2xy+2xz-2xy+y^2-yz+2xz-yz+z^2
= 4x^2-4xy+4xz+y^2-2yz+2xz+z^2
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