Odpowiedź:
a) [tex](6x+2)^{2} = (6x)^{2} + 2 * 6x * 2 + 2^{2} = 36x^{2} + 24x+4\\[/tex]
b) [tex](5x-3)^{2} = (5x)^{2} - 2 * 5x*3 + 3^{2}= 25x^{2} - 30x +9[/tex]
c) [tex](\sqrt{3} -\sqrt{5})(\sqrt{3}+ \sqrt{5}) = \sqrt{3} ^{2} - \sqrt{5} ^{2} = 3-5 = -2[/tex]
d) [tex](10x+2)(2-10x)= (2+10x)(2-10x)=2^{2} - (10x)^{2} = 4-100x^{2}[/tex]
Myślę, że pomogłem ;)
