To simplify \(\sqrt{28}\), we start by factoring 28 into its prime factors:
\[ 28 = 4 \times 7 \]
Next, we can use the property of square roots that states \(\sqrt{a \times b} = \sqrt{a} \times \sqrt{b}\):
\[ \sqrt{28} = \sqrt{4 \times 7} = \sqrt{4} \times \sqrt{7} \]
We know that \(\sqrt{4} = 2\), so:
\[ \sqrt{28} = 2 \times \sqrt{7} \]
Thus, the simplified form of \(\sqrt{28}\) is:
\[ 2\sqrt{7} \]
Therefore, the correct response is:
2 start root 7 end root