Question

Simplify (x+y+z) ^2 + (x+y-z) ^2 Please answer correctly
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AMA LOGI AVAN LOOSU ILLA PSHYCO ​

Answer 1

Answer:

Oii ya questions parru GA madam

Answer 2

Explanation:

solution : Given

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

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

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

= 2x^2+2y^2+2z^2+4xy

(x+y+z) ^2 + (x+y-z) ^2 = 2x^2+2y^2+2z^2+4xy