| $$ 1.\ \sqrt{16x^4} = $$ | $$ 2.\ \sqrt[3]{8x^3} = $$ |
| $$ 3.\ \sqrt[4]{16x^4} = $$ | $$ 4.\ \sqrt{48} = $$ |
| $$ 5.\ \sqrt{48x^6} = $$ | $$ 6.\ \sqrt{100x^8} = $$ |
| $$ 7.\ \sqrt[3]{64x^{12}} = $$ | $$ 8.\ \sqrt[4]{81x^{80}} = $$ |
| $$ 9.\ \sqrt{x^2y^4} = $$ | $$ 10.\ \sqrt{225x^6y^{14}} = $$ |
| $$ 11.\ \sqrt[3]{-125x^{15}y^{21}} = $$ | $$ 12.\ \sqrt[5]{-32x^{20}y^{50}} = $$ |