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ICSE Class 9 Answered

begin mathsize 12px style Factorise colon
straight a squared minus 3 straight a squared minus straight a plus 3 end style
Asked by Topperlearning User | 04 Aug, 2017, 11:54: AM
answered-by-expert Expert Answer

begin mathsize 12px style straight a squared minus 3 straight a squared minus straight a plus 3
equals straight a squared minus straight a minus 3 straight a squared plus 3
equals straight a left parenthesis straight a minus 1 right parenthesis minus 3 left parenthesis straight a squared minus 1 right parenthesis
equals straight a left parenthesis straight a minus 1 right parenthesis minus 3 left parenthesis straight a minus 1 right parenthesis left parenthesis straight a plus 1 right parenthesis
equals left parenthesis straight a minus 1 right parenthesis left square bracket straight a minus 3 left parenthesis straight a plus 1 right parenthesis space right square bracket
equals left parenthesis straight a minus 1 right parenthesis left parenthesis straight a minus 3 straight a minus 3 right parenthesis
equals left parenthesis straight a minus 1 right parenthesis left parenthesis negative 2 straight a minus 3 right parenthesis
equals left parenthesis 1 minus straight a right parenthesis left parenthesis 2 straight a plus 3 right parenthesis end style

Answered by | 04 Aug, 2017, 01:54: PM
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