Ex 8.1, 2 (b) Subtract 3xy + 5yz – 7zx from 5xy – 2yz – 2zx + 10xyzWe have to subtract 1st expression from the 2nd expression. So, we write 2nd expression first. Putting like terms below like terms

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.