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2015-06-13T08:45:47+05:30
 x^{2} +3 \sqrt{3}x-30\\ \\=  x^{2} +5 \sqrt{3}x-2 \sqrt{3}x-30\\ \\=  x(x +5 \sqrt{3})-2 \sqrt{3}(x+5 \sqrt{3})\\ \\= (x +5 \sqrt{3})(x -2 \sqrt{3})
3 5 3
Smart boy
thank you
can you give the answer i asked only some time ago plz