How do you solve #4sqrt(3m^2-15)=4#?
Divide 4 on both sides:
The fours cancel leaving:
Square both sides to get rid of the square root. Note that when you do this, it will become positive or negative 1
Add 15 to both sides.
Divide 3 on both sides.
Finally, square root both sides to get rid of the square. Note that this will give you the positive and the negative of the answer