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Asked by Girishdhawan | 25 Jun, 2018, 09:03: PM
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begin mathsize 16px style straight x cubed space minus space 8 straight y cubed space minus space 36 xy space minus space 216 equals space straight x cubed space minus space left parenthesis 2 straight y right parenthesis cubed space minus space 36 xy space minus space 216 equals space left parenthesis space straight x space minus space 2 straight y right parenthesis left square bracket straight x squared space plus space 2 xy space plus left parenthesis 2 straight y right parenthesis squared right square bracket space minus space 36 xy space minus space 216 space........ since space straight x space minus space 2 straight y space equals space 6 equals space 6 space left parenthesis straight x squared space plus space 2 xy space plus 4 straight y squared right parenthesis minus space 36 xy space minus space 216 space equals space 6 straight x squared space plus space 12 xy space plus 24 straight y squared minus space 36 xy space minus space 216 equals space 6 straight x squared space minus space 24 xy space plus 24 straight y squared minus space 216 equals space 6 space left parenthesis straight x squared space minus 4 xy space plus space 4 straight y squared right parenthesis space minus 216 equals space 6 space left parenthesis space straight x space minus space 2 straight y right parenthesis squared space minus space 216 equals space 6 space cross times left parenthesis 6 right parenthesis squared space minus space 216 space space space........ since space straight x space minus space 2 straight y space equals space 6 equals space 6 space cross times 36 space minus space 216 equals space 216 space minus space 216 equals space 0 end style
Answered by Yasmeen Khan | 26 Jun, 2018, 03:09: PM

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CBSE 9 - Maths
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