Answer:
[tex]D.7 \sqrt{3}[/tex]
Step-by-step explanation:
[tex]\sqrt{147}[/tex]
Factor 147= 7²× 3.
Rewrite the square root of the product [tex]\sqrt{7^{2} \times 3}[/tex] as the product of square root [tex]\sqrt{7^{2} } \sqrt{3}[/tex].
Then take the square root of [tex]7^{2}[/tex]
[tex]\longmapsto7\sqrt{3}[/tex]
________________________
