I've done this problem a few times and can't get it. Help?
It is using quadratic form, letting U=x^2

24x^4+14x^2-3=0

Question

I've done this problem a few times and can't get it. Help? 
It is using quadratic form, letting U=x^2

24x^4+14x^2-3=0

anonymous · Answer

srry but she might be able 2 help   @kristyn-whitaker

displayerror · Answer

Use the substitution that is provided.
Your equation as given:
$$24x^4 + 14x^2-3=0$$
So we can replace the x terms in the first equation with U by using the substitution as follows
$$U^2 = (x^2)^2 = x^4$$
$$U=x^2$$
The equation then becomes
$$24U^2 + 14U -3 =0$$
Now that is in a form that you should be able to solve by either factoring or using the quadratic equation.