In doing some homework, I came across one question asking me to convert the polynomial m^{6}+5m^{3}-10=0 to quadratic form. One problem: the book doesn't explain how to do it. Could someone help me?

\(\text{let }u=m^3\\ m^6 +5m^3 - 10 = 0 \Rightarrow \\ u^2 + 5u - 10 = 0\)

Thanks!