You can put this solution on YOUR website! Use the quadratic equation to solve the quadratic equation.
18x^4-30x^2 = 0
You don't need the quadratic formula to solve this
Factor out 6x^2
6x^2(3x^2 - 5) = 0
Three solutions
x = 0
and
3x^2 = 5
x^2 =
x = +
and
x = -