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ICSE Class 8 Answered

Please help me to solve the following two problems on Factorisation ab(x^2+y^2) - xy (a^2+b^2) m-1-(m-1)^2+am-a
Asked by c k | 18 Nov, 2018, 08:41: PM
answered-by-expert Expert Answer
begin mathsize 12px style a b left parenthesis x squared plus y squared right parenthesis space minus space x y left parenthesis a squared plus b squared right parenthesis equals space a b x squared space plus space a b y squared space minus space a squared x y space minus space b squared x y equals space a b x squared space minus space a squared x y space plus space a b y squared space space minus space b squared x y equals space a x left parenthesis b x space minus space a y right parenthesis space plus space b y left parenthesis space a y space minus space b x right parenthesis space equals space left parenthesis b x space minus space a y right parenthesis space left parenthesis a x space minus space b y space right parenthesis end style
 
begin mathsize 12px style m minus 1 space minus left parenthesis m minus 1 right parenthesis squared space plus space a m space minus space a equals space left parenthesis m minus 1 right parenthesis space left square bracket space 1 space minus left parenthesis m minus 1 right parenthesis right square bracket space plus a space left parenthesis m minus 1 right parenthesis equals left parenthesis m minus 1 right parenthesis space left square bracket space 2 minus m plus a right square bracket space equals left parenthesis m minus 1 right parenthesis left parenthesis a plus 2 minus m right parenthesis end style
Answered by Thiyagarajan K | 19 Nov, 2018, 12:53: AM

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