Question

- x2 + y2+z2 if the Value of x=2 , y=3 and z=4



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Answer 1

Step-by-step explanation:

-x²+y²+z²

= -2²+3²+4²

= -4+9+16

= 21 is the correct answer..

Answer 2

-2square + 3square + 4square = -4 + 9 + 16

= 5+16

= 21