Can someone me with this?
find the roots of -x^2-20=-x^4

The roots are

Step-by-step explanation:

The equation is

Switch sides, we get,

Adding both sides by 20, we get,

Adding both sides by ,

To solve this equation, let us assume and

Thus, rewriting this equation,

Using quadratic formula, we get the value of u.

The variable u has two solutions,

and

Since, and

Thus, substituting the u-values, we get,

and

Thus, the roots are  

1,589.63 in.^3

step-by-step explanation:

i hope this you : d

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4