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Factorise x²+9y²+16z²+6xy-24yz-8xz

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Factorise x²+9y²+16z²+6xy-24yz-8xz

Posted by Suhani Sharma 1 year, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Arkadeep Deogharia 1 year, 6 months ago

x² +9y² +16z² +6xy –24yz –8xz Since, +6xy is positive but –24yz and –8xz are negative,that means that the variables x and y are negative... = (–x –3y + 4z)² [using identity a² + b² + c² + 2ab – 2bc – 2ca = (–a–b+c)²] = (–x –3y + 4z)(–x –3y + 4z)

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CBSE > Class 09 > Mathematics