Question

Add the product of x(x+y-r), y(x-y+r), z(x-y+z) is _______ *

Answer 1

Answer:

x2-y2+z2+2xy

Step-by-step explanation:

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

(x2+xy-xz)+(xy-y2+yz)+(xz-yz+z2)

x2-y2+z2+2xy

Answer 2

$\huge\tt{❥Answer}$

${x}^{2} + xy - rx + xy - {y}^{2} + ry + xz \\ - yz - {z}^{2} \\ {x}^{2} - {y}^{2} - {z}^{2} + 2 xy - rx + ry + xz \\ - yz \\ {x}^{2} - {y}^{2} - {z}^{2} + 2xy - r(x + y) + z \\ (x - y)$