Question

x^2+2xy+y^2+z^2 if x=2,y=1,z=-3​

Answer 1

Answer:

18

Step-by-step explanation:

x^2+2xy+y^2+z^2

2^2+2(2)(1)+1^2+(-3)^2

4+4+1+9=18

Answer 2

Answer:

put the value of X=2,y=1and z=-3

4+4+1+9=18

so 28 is the answer of your question