Math, asked by devarajiah, 11 months ago

Expand this (x+y-2z)^2

Answers

Answered by amrita230905

9

Answer:

Step-by-step explanation:

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

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

= +x2-xy-2xz-yx+y2+2yz-2zx+2zy+4z2

= x2+y2+4z2-2xy-4zx+4zy

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