Figure it out - Page 142, 143
Last updated at January 12, 2026 by Teachoo
Transcript
Question 4 (i) Expand (i) (a + ab โ 3b2) (4 + b)Solving (๐+๐๐โ3๐^2 )(4+๐) =๐(4+๐)+๐๐(4+๐)โ3๐^2 (4+๐) =๐๐+๐๐+๐๐๐+๐๐ ร ๐ โ๐๐๐^๐โ๐๐^๐ ร ๐ =4๐+๐๐+4๐๐+๐๐^2 โ12๐^2โ3๐^3 =4๐+(๐๐+4๐๐)+๐๐^2 โ12๐^2โ3๐^3 =๐๐+๐๐๐+๐๐^๐ โ๐๐๐^๐โ๐๐^๐ Question 4 (ii) Expand (ii) (4y + 7) (y + 11z โ 3).