Sarthaks Test
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Factorise:

(i)4x2 + 9y2 + 16z2 + 12xy - 24 yz - 16xz

(ii) 2x2 + y2 + 8z2 - 2√2xy + 4√2yz - 8xz

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It is known that,

(x + y + z)2 = x+ y+ z+ 2xy + 2yz  +2zx

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