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CBSE Class 8 Answered

Factorise
-4(a-2b)+8(a-2b)²
Asked by Shawn | 23 Jan, 2016, 01:34: PM
answered-by-expert Expert Answer
bottom enclose negative 4 open parentheses a minus 2 b close parentheses end enclose plus bottom enclose 8 open parentheses a minus 2 b close parentheses squared end enclose T a k i n g space left parenthesis a minus 2 b right parenthesis space c o m m o n space f r o m space b o t h space t e r m s comma space w e space g e t open parentheses a minus 2 b close parentheses open square brackets negative 4 plus 8 open parentheses a minus 2 b close parentheses close square brackets equals open parentheses a minus 2 b close parentheses open parentheses negative 4 plus 8 a minus 16 b close parentheses N o w space t a k i n g space apostrophe 4 apostrophe space c o m m o n space f r o m space t h e space s e c o n d space t e r m comma space w e space g e t open parentheses a minus 2 b close parentheses cross times 4 cross times open parentheses negative 1 plus 2 a minus 4 b close parentheses equals 4 open parentheses a minus 2 b close parentheses open parentheses negative 1 plus 2 a minus 4 b close parentheses
Answered by satyajit samal | 24 Jan, 2016, 11:33: AM

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