Tìm cặp số nguyên dương (x;y) để biểu thức sau có giá trị là số nguyên A=x+y-2/x+y hãy giúp tui giải bài toán

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41.shouldnt / cream / you / ice / eat .. 42.in / Nam / often / free time / cartoons / watches / TV / on /the/ 43.does / today / have / an / Phong / earache ? ........ 44.her / matter / with / whats / the/ ? ..................................................................................... 45.free / what / do / in / you / time / do / your/ . . 46. you, / matter / with / Tony / Whats / the/? ................................................................................................................................................................ 47. should / dentist / to/You / the/ go/. .................................................................................................................................................................... 48. do / mother / What / free / in / her/ does / your / time/? ................................................................................................................................................................ 49. surfs / free / internet / Nam / in / the / his/. ................................................................................................................................................................... 50. Red River / camp / forest /is / The / in / the / near/ the /. .............................................................................................................................................. 51. a/ went/ the/ to/ because/ he/ yesterday/ had/ Nam/ dentist/ toothache/ ................. 52. have/ I/ headache/ a ................... 53. She/ goes / the/ usually/ to/ cinema/. .................. 54. What/ do/ brother/ free/ in/ his/ does/ your/ time/? ................... 55. often/ cartoons/time/ watches/ TV/ He/ on/ his/ free/in/ . ................... 56. shouldnt/ heavy/ You / carry/ things/ .. 57.have/ Phong/ Peter / headache/ and /a/ .. 58. does/ do / What/ mother / your/ her/ in/ free time/?/ ... 59. often/ cartoons/time/ watches/ TV/ Mai/ on/ her/ free/in/ . .... 60. like/ he/ going / Does / the/ his/ with/friends/ to/cinema /?/