How do you solve sqrt(5x^2 - 40)= 0?
2 Answers
Mar 12, 2018
Explanation:
Square both sides:
5x^2 - 40 = 0
5x^2 = 40
x^2 = 8
x = +- sqrt(8)
x = +-2sqrt(2)
Both these solutions are valid as they satisfy the original equation.
Hopefully this helps!
Mar 12, 2018
Explanation:
- First, square both sides of the equation, so
5x^2-40=0 - Add
40 to both sides:5x^2=40 - Divide by
5 on both sides:x^2=8 - Square root on both sides:
x= +- sqrt(8)