If x-1- y-2 and z-3 then x2-y2-z2- -a 6b 12c 14d 15

(c) 14 Substituting x = 1, y = 2 and z = 3 in (x2 + y2 + z2): 12 #160; #160;+ #160;22 #160;+ #160;32 or, 1 + 4 + 9 = 14 ...

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Laws of Exponents

If x=1, y=2 a...

Question

If x = 1, y = 2 and z = 3 then (x² + y² + z²) = ?
(a) 6
(b) 12
(c) 14
(d) 15

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