Question

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Answer 1

Bài 1;

\(a,=\sqrt{3}\left(\sqrt{3}+1\right)\)

\(b,=\sqrt{3}\left(\sqrt{5}-\sqrt{2}\right)\)

\(c,=\sqrt{21}\left(\sqrt{3}+\sqrt{7}\right)\)

\(d,=\sqrt{110}\left(\sqrt{10}+\sqrt{11}\right)\)

\(e,=10\sqrt{6}\sqrt{3}+5\sqrt{3}-45\sqrt{3}\)

\(=\sqrt{3}\left(10\sqrt{6}-40\right)\)

\(f,=\sqrt{a}\left(\sqrt{a}-6\right)\)

\(g,=\left(\sqrt{l}+3\right)^2\)

\(h=\left(a-\sqrt{5}\right)\left(a+\sqrt{5}\right)\)