Szybko na dziś[tex]a) (\sqrt[]{3} +1)(2\sqrt{3} -2)=\\b) (\sqrt{2} + \sqrt{3})(\sqrt{5} +1)=\\c) (\sqrt{2} +1)(5-2\sqrt{2} )=\\d) (2+\sqrt{2})(2\sqrt{2} +3)=\\[/tex]