A87 +38. X= 7 - 134 xy=1 969, CARME CT, *xyty - 12161, xÂ²-xyty? - 1 – InterviewSolution

1.	A87 +38. X= 7 - 134 xy=1 969, CARME CT, *xyty - 12161, xÂ²-xyty? - 11
Answer» root7+root3/root7-root3 x root7 - root 3/root7-root3=(root7+root3)(root7-root3)/(root 7- root3)^2=(root49-root 21+root21+root 9)/7-3=(root 49+root 9)/4=(7+3)/4=10/4

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