Question

find the value of the polynomial when

1) x = 4 , y = 3 , z = -2 .

2) x² + y² + z² + 2xyz .


Step By Step explanation Please.
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Answer 1

Step-by-step explanation:

4^2+3^2+(-2)^2+2×4×3×(-2)

16+9+4-48

29-48=-19

X^2+Y^2+Z^2+2XYZ=-19