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

(x-y-z)^(2)-(x+y+z)^(2) is equal to

(x-y-z)^(2)-(x^(2)+y^(2)+z^(2))=2(yz-zx-xy)

The value of (x^(2)-(y-z)^(2))/((x+z)^(2)-y^(2))+(y^(2)-(x-z)^(2))/((x+y)^(2)-z^(2))+(z^(2)-(x-y)^(2))/((y+z)^(2)-x^(2)) is -1(b)0(c)1(d) None of these

The value of (x^(2)-(y-z)^(2))/((x+z)^(2)-y^(2))+(y^(2)-(x-z)^(2))/((x+y)^(2)-z^(2))+(z^(2)-(x-y)^(2))/((y+z)^(2)-x^(2))

Write the following in expanded form: (x-2y-3z)^(2)( ii) (-x+2y+z)^(2)

The expression x ^(2) - y ^(2) + x + y - z ^(2) + 2 yz - z has one factors, which is

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

Write the following in expanded form: (i) (9x+2y+z)^(2)( ii) (3x+2y-z)^(2)( iii) (x-2y-3z)^(2)( iv) (-x+2y+z)^(2)

Prove that 4x^2(y-z)+y^2(2x-z)+z^2(2x+y)-4xyz = (2x+y)(y-z)(2x-z)