Question

4x^4 - 6x^2 - 7 = 0 How can I factor it?

Answer 1

You cannot solve by factoring

Explanation:

We want to solve
`4x^4-6x^2-7=0` by factoring.

We can rewrite as:
`4(x^2)^2-6x^2-7=0`

So we have a quadratic equation in
`x^2`.

We split the middle term to get:

We look for factors -28 that sum up to -6

This is not possible hence the given equation is not factorable