The expression is:
[tex]7x^8-2x^2+x-4^{}[/tex]In general, a polynomial has the form:
[tex]a_nx^n+a_{n-1}x^{n-1}+\cdots+a_1x+a_0,a_n\ne0[/tex]And we say that the polynomial is the degree n.
In our expression. a_n=7 and that is not equal to zero. Then, the expression is of degree 8 since a_n=7=a_8. The answer is true.
