Question

X+y=z....prove that.....x cube -y cube-z cube....3xyz=0

Answer 1

Answer:x+y=z

X+y-z=0

Cube both sides

X cube + y cube -z cube =0 cube

Identity x cube + y cube +z cube -3(x)(y) (z)

X cube+ y cube +z cube 3(x)(y) (z) =0

Hence proved