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CBSE Class 9 Answered

Factorise: 5(3x+y)whole square +6(3x+y)-8
Asked by Virender | 31 May, 2016, 06:21: PM
answered-by-expert Expert Answer
Let space 3 straight x space plus space straight y space equals space straight a So comma space the space polynomial space becomes space 5 straight a squared plus space 6 straight a space minus space 8 equals space 5 straight a squared plus space 10 straight a space minus space 4 straight a space minus space 8 equals 5 straight a space left parenthesis straight a space plus space 2 right parenthesis space minus space 4 space left parenthesis straight a space plus space 2 right parenthesis equals left parenthesis straight a space plus space 2 right parenthesis space left parenthesis 5 straight a space minus space 4 right parenthesis space equals left parenthesis 3 straight x space plus space straight y space plus space 2 right parenthesis space left square bracket 5 space left parenthesis 3 straight x space plus space straight y right parenthesis space minus space 4 right square bracket space equals left parenthesis 3 straight x space plus space straight y space plus space 2 right parenthesis space left parenthesis 15 straight x space plus space 5 straight y space minus space 4 right parenthesis
Answered by Rebecca Fernandes | 01 Jun, 2016, 10:12: AM

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