zrobicie mi zadanie 8 prosze jestem na lekcji daje najj

a) [latex] sqrt{12} +5 sqrt{3}= sqrt{4*3}+5 sqrt{3}=2 sqrt{3}+5 sqrt{3}=7 sqrt{3} [/latex] b) [latex]2 sqrt{48}+2 sqrt{3}= 2 sqrt{16*3}+2 sqrt{3}=8 sqrt{3}+2 sqrt{3}=10 sqrt{3} [/latex] c)[latex]3 sqrt{20}+ sqrt{5}=3 sqrt{4*5}+ sqrt{5}=6 sqrt{5}+ sqrt{5}=7 sqrt{5} [/latex] d) [latex] sqrt{18}-2 sqrt{8}= sqrt{9*2}-2 sqrt{4*2}=3 sqrt{2}-4 sqrt{2}=- sqrt{2} [/latex] e)[latex] sqrt{90}+ sqrt{40} + sqrt{250}= sqrt{9*10} + sqrt{4*10} + sqrt{25*10}=[/latex][latex]3 sqrt{10}+2 sqrt{10}+ 5 sqrt{10}=10 sqrt{10} [/latex] f)[latex] sqrt[3]{40}+ sqrt[3]{135}= sqrt[3]{8*5}+ sqrt[3]{27*5}=2 sqrt[3]{5}+3 sqrt[3]{5}=5 sqrt[3]{5} [/latex] g)[latex]2 sqrt{45}+3 sqrt{20}- sqrt{80}=2 sqrt{9*5}+3 sqrt{4*5}- sqrt{16*5}=[/latex][latex]6 sqrt{5}+6 sqrt{5}-4 sqrt{5} =8 sqrt{5} [/latex] h)[latex] frac{ sqrt{50}+ sqrt{72} }{ sqrt{2} } = frac{ sqrt{25*2} + sqrt{36*2} }{ sqrt{2} } = frac{5 sqrt{2}+6 sqrt{2} }{ sqrt{2} } = frac{11 sqrt{2} }{ sqrt{2} } =11[/latex] i)[latex] frac{ sqrt{48}+ sqrt{75} }{ sqrt{27} } = frac{ sqrt{16*3} + sqrt{25*3} }{ sqrt{9*3} } = frac{4 sqrt{3} +5 sqrt{3} }{3 sqrt{3} } = frac{9 sqrt{3} }{3 sqrt{3} } =3[/latex]