Ex 12.2, 2 - Chapter 12 Class 7 Algebraic Expressions - Part 2

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Transcript

Question 2 Add: (ii) t – 8tz, 3tz – z, z – t (t – 8tz) + (3tz – z) + (z – t) = t – 8tz + 3tz – z + z – t = t – t – 8tz + 3tz – z + z = t (1 – 1) + tz (–8 + 3) + z (–1 + 1) = t (0) + tz (–5) + z (0) = –5tz

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