sanman777 wrote:solve x^4-6x^2=7
This is an equation in the form of
a quadratic:. . . . .. . . . .
So factor the above just as you would factor
the below:. . . . .
Then solve the two factors:. . . . .
Whether you have two solutions or four will depend upon whether you've studied complex numbers
If you get stuck, please reply with a clear listing of your work and reasoning so far. Thank you!