Question

expand using identity thr suitable (2x-y+z)​

Answer 1

$if \: your \: question \: is \: this$

$(2x - y + z) {}^{2}$

$then \: the \: solution \: is$

$(2 {x})^{2} - (y) {}^{2} + (z) {}^{2} + 2(2x \times y - y \times z + z \times 2x)$

$4 {x}^{2} - {y}^{2} + {z}^{2} + 2(2xy - yz + 2xz)$

$4 {x}^{2} - {y}^{2} + z {}^{2} + 4xy - 2yz + 4xz$