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Factorise:2x2 + y2 + 8z2- 2√2 xy -24yz -16xz |
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Answer» k the SOLUTION below Step-by-step explanation: if a =‐root2x,b=yandc=2root2z then USING the identity (a+b+c)² we get 2x²+y²+8z-2root2|xy+4root2yz-8xz(-root2x+y+2root2z) (-root2x+y+2root2z) =(-root2x+y+2root2z)² ur ANSWER |
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