Write the expression 13m^8 - 3m^4 + 4 in quadratic form if possible.

Question

m^8?

Answer 1

how can you possibly think that those are the same?

Quadratic form means you want a quadratic expression of the form

az^2 + bz + c

Now, since m^8 = (m^4)^2, you have

13(m^4)^2 - 3(m^4) + 4

which is a quadratic if you let z=m^4. Then you have

13z^2-3z+4

Answer 2

Sorry, I'm very rusty on this concept. Thank you for the explanation.