Question

x, y, z belongs to whole number X + Y + Z + xy + y z + x y z equal to zero find X + 2 Y + 3 Z​

Answer 1

Answer:

As xyz belongs to whole number , it should start with 0,1,2..... but not from a negative number so DO NOT INCLUDE NEGATIVE NUMBERS ,

Step-by-step explanation:

When will X+Y+Z+xy+yz+xyz be equal to 0 when all x , y and z values are 0 I.e 0+0+0+0x0+0x0+0x0x0 = 0 ( equation is satisfied), when we put some other number in the values of xyz , like x=0 y=2 z=1 the equation cannot be satisfied as in this case the first process X+Y+Z will not be equal to 0 thus whole equation not equal to 0 so only possibility is x=0 y=0 z=0,

So x+2y+3z=?

0 + 2(0) + 3(0)=?

0+0+0=0 answer is 0