Question

Q. (x+y+z) (x+y-z) ?
solve question.
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Answer 1

(x + y + z) (x + y - z)

$= > {x}^{2} + xy - xz + xy + {y}^{2} - yz + xz + yz - {z}^{2}$

$= > {x}^{2} + {y}^{2} - {z}^{2} + 2xy$

I hope it will be helpful for you ☺

Fóllòw Më ❤✔