Answer:
v = ± [tex]\sqrt{47}[/tex]
Step-by-step explanation:
Given
v² = 47 ( take the square root of both sides )
v = ± [tex]\sqrt{47}[/tex] ← note plus or minus
Since [tex]\sqrt{47}[/tex] × [tex]\sqrt{47}[/tex] = 47
and
- [tex]\sqrt{47}[/tex] × - [tex]\sqrt{47}[/tex] = 47
