PLZ ASNWER AS SOON AS POSSIBLE
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Answer:
(b) (3x+2y-4z)²
Step-by-step explanation:
9x²+4y²+16z²+12xy-16yz-24xz
=(3x)²+(2y)²+(-4z)²+2(3x)(2y)-2(2y)(-4z)-2(3x)(-4z)
=(3x+2y-4z)²
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