Question

The Expanded form of (x+ y- z)² is..
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Answer 1

Answer:

X +y +Z ^2

Step-by-step explanation:

Answer 2

Ans. (x+y-z)^2

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

= x^2+y^2+z^2+2xy-2yz-2zx ans.

By using the identity, (a+b+c)^2 = a^2+b^2+c^2+2ab+2bc+2ca