Answer: x = -1
Step-by-step explanation:
To remove the radical on the left side of the equation, square both sides of the equation.
√1−3x2=(x+3)2
Simplify each side of the equation.
1−3x=x2+6x+9
Solve for x
x=−1−8
Exclude the solutions that do not make true
√1−3x=x+3
x=−1
